Sales from online = 50% of total sales = 50% of 60000 = 30000
The ratio of supermarket sales and book store sales is 1:2
Supermarket sales = (30000*1)/3 = 10000
Bookstore sales =Â (30000*2)/3 = 20000
Initial costs for online = 50% of total initial costs               (Initial cost is allocated in ratio of sales)
                 = 50% of 39000 = 19500
Initial costs for supermarket =Â (19500*1)/3 = 6500Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (Initial cost is allocated in ratio of sales)
Initial costs for bookstore =Â (19500*2)/3 = 13000
For online:
Additional costs = Red + Yellow + Green + Violet        for online)   ....(1)
Total red costs = 5500
Red costs for online = 5500*(200/275) = 4000
Similarly,
Yellow costs for online = 3100*(52/100) =Â 1612
Green costs for online = 4800*(50/80)Â = 3000
Violets costs for online = 2400*(50/80)Â = 1500
Addition costs for online = 4000+1612+3000+1500 = 10112Â Â Â Â Â Â Â Â Â Â From (1)
Profit = Sales - Initial costs - Additional costs = 30000-19500- 10112 = 388
For Supermarket:
Additional costs = Red + Yellow + Green + Violet
             = 5500*(65/275) + 3100*(20/100) +4800*(21/80)+2400*(21/80) = 3810
Profit = 10000-6500- 3810
     = -310
For Bookstore:
Additional costs = Red + Yellow + Green + Violet
            = 5500*(10/275) + 3100*(30/100) +4800*(9/80)+2400*(9/80)
Profit = 20000-13000-1940 = 5060
Supermarket is making least profit for BnC.
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