The Shopkeeper increased the price of a product by 22% so that customer finds it difficult to purchase the required amount. But somehow the customer managed to purchase only 70% of the required amount. What is the net difference in the expenditure on that product?	Choose the correct choice
A) A)12.5% B) B)12.2% C) C)13.15% D) D)14% E) E)15%
Quantity X Rate = Price   1 x 1 = 1   0.7 x 1.22 = 0.854   Decrease in price = (0.122/1) × 100 = 12.2%   12.2%)
<result>B</result>
The Shopkeeper increased the price of a product by 22% so that customer finds it difficult to purchase the required amount. But somehow the customer managed to purchase only 70% of the required amount. What is the net difference in the expenditure on that product?