Total amount = sale value + Purchase value
= 30350 + 69650 = Rs.1,00,000
Rate of Brokerage = 0.1 %
Brokerage = 0.1 % of 1,00,000
= (0.1/100) × 1,00,000
= Rs.100
Rate of GST = 18%
∴ GST = 18 % of brokerage
= (18/100) × 100
∴ GST = Rs.18
Total expenditure on brokerage and tax
= 100 + 18
= Rs.118
∴ Total expenditure on brokerage and tax is Rs.118.
Alternate Method:
Brokerage = 0.1 %, GST = 18%
At the time of selling shares:
Total sale amount of shares = Rs.30,350
Brokerage = 0.1% of 30,350
= (0.1/100) x 30,350
= Rs. 30.35
GST = 18% of Rs. 30.35
=(18/100 ) x 30.35
= Rs. 5.463
For purchasing shares:
Total purchase amount of shares = Rs.69,650
Brokerage = 0.1% of 69,650
= (0.1/100) × 69650 = Rs.69.65
GST = 18% of 69.65
= (18/100) × 69.65
= Rs.12.537
∴ Total expenditure on brokerage and tax = Brokerage and tax on selling + Brokerage and tax on purchasing
= (30.35 + 5.463) + (69.65 + 12.537)
= Rs. 118
∴ Total expenditure on brokerage and tax is Rs.118