A trader marks his goods at 30% above cost price and allows a discount of 10%. What is his gain per cent?
Let CP will be Rs.100
Marked Price = Rs.130
10% Discount on Marked Price = 10% of Rs.130
= Rs.13
So, SP = 130 -13
= Rs.117
Gain = SP – CP
= 117 – 100
= Rs.17
= (17 × 100) / 100
= 17%