The shopkeeper increased the price of a product by 25% so that customer finds 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 ?

• ক None of these
• খ 12.5% less ✅ সঠিক উত্তর
• গ 10% more
• ঘ 55 more