# STEP 1: Create Data Frame
retail <- data.frame(
  BillID = c(501,502,503,504,505,506),
  CustomerName = c("Aman","Riya","Karan","Neha","Rohit","Simran"),
  Gender = factor(c("Male","Female","Male","Female","Male","Female")),
  Membership = factor(c("Gold","Silver","Gold","None","Silver","Gold")),
  Category = factor(c("Grocery","Electronics","Clothing","Grocery","Electronics","Clothing")),
  Quantity = c(10,1,3,8,2,5),
  CostPrice = c(50,20000,800,60,18000,700),
  SellingPrice = c(70,25000,1000,80,22000,900),
  Discount = c(100,2000,150,50,500,300),
  DeliveryType = factor(c("Home","Store","Home","Store","Home","Home"))
)
retail
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType
## 1           70      100         Home
## 2        25000     2000        Store
## 3         1000      150         Home
## 4           80       50        Store
## 5        22000      500         Home
## 6          900      300         Home
# STEP 2: Calculated Columns
retail$GrossRevenue <- retail$Quantity * retail$SellingPrice
retail
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType GrossRevenue
## 1           70      100         Home          700
## 2        25000     2000        Store        25000
## 3         1000      150         Home         3000
## 4           80       50        Store          640
## 5        22000      500         Home        44000
## 6          900      300         Home         4500
retail$TotalCost <- retail$Quantity * retail$CostPrice
retail
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType GrossRevenue TotalCost
## 1           70      100         Home          700       500
## 2        25000     2000        Store        25000     20000
## 3         1000      150         Home         3000      2400
## 4           80       50        Store          640       480
## 5        22000      500         Home        44000     36000
## 6          900      300         Home         4500      3500
retail$NetRevenue <- retail$GrossRevenue - retail$Discount
retail
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType GrossRevenue TotalCost NetRevenue
## 1           70      100         Home          700       500        600
## 2        25000     2000        Store        25000     20000      23000
## 3         1000      150         Home         3000      2400       2850
## 4           80       50        Store          640       480        590
## 5        22000      500         Home        44000     36000      43500
## 6          900      300         Home         4500      3500       4200
retail$Profit <- retail$NetRevenue - retail$TotalCost
retail
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType GrossRevenue TotalCost NetRevenue Profit
## 1           70      100         Home          700       500        600    100
## 2        25000     2000        Store        25000     20000      23000   3000
## 3         1000      150         Home         3000      2400       2850    450
## 4           80       50        Store          640       480        590    110
## 5        22000      500         Home        44000     36000      43500   7500
## 6          900      300         Home         4500      3500       4200    700
retail$GrossRevenue <- retail$Quantity * retail$SellingPrice
print(retail)
##   BillID CustomerName Gender Membership    Category Quantity CostPrice
## 1    501         Aman   Male       Gold     Grocery       10        50
## 2    502         Riya Female     Silver Electronics        1     20000
## 3    503        Karan   Male       Gold    Clothing        3       800
## 4    504         Neha Female       None     Grocery        8        60
## 5    505        Rohit   Male     Silver Electronics        2     18000
## 6    506       Simran Female       Gold    Clothing        5       700
##   SellingPrice Discount DeliveryType GrossRevenue TotalCost NetRevenue Profit
## 1           70      100         Home          700       500        600    100
## 2        25000     2000        Store        25000     20000      23000   3000
## 3         1000      150         Home         3000      2400       2850    450
## 4           80       50        Store          640       480        590    110
## 5        22000      500         Home        44000     36000      43500   7500
## 6          900      300         Home         4500      3500       4200    700