Question

A lamp is on sale and it's price is reduced from $80 to $50. what is the percentage decrease?

Answer 1

Percentage change =Final value -Initial value / initial value * 100\
= 50 - 80 / 80 * 100
= -30/80 * 100
= -3/8 * 100
= -300/8
= -37.5%

In short, Your Answer would be -37.5%

Hope this helps!