When the price of pressure cooker was increased by 15%, its sale fell down by 15%. The effect on the money receipt was: (CAP GEMINI COMPANY)

When the price of pressure cooker was increased by 15%, its sale fell

1.	When the price of pressure cooker was increased by 15%, its sale fell down by 15%. The effect on the money receipt was: (CAP GEMINI COMPANY)
A.	15% decrease
B.	no effect
C.	2.25% decrease
D.	7.5% increase
Answer» D. 7.5% increase