The Shopkeeper increased the price of a product by 25% so that customer finds it difficult to purchase the required amount. But somehow the customer managed to purchase only 76% of the required amount. What is the net difference in the expenditure on that product?	Choose the correct choice from the following
A) 12.5 %
B) 13 %
C) 5 %
D) 17 %
E) 19 %

Rationale: quantity x rate = price 1 x 1 = 1 0.76 x 1.25 = 0.95 decrease in price = ( 0.05 / 1 ) × 100 = 5 % c )
Answer: C