-24.32% is the change from 662 to 501
Calculation steps:
[( 501 - 662 ) ÷ 662] x 100 = -24.32%
Formula
Percentage change = [(501 - 662) / 662] x 100
Subtract the new number by the original number
501 - 662 = -161
-161 ÷ 662 = -0.243202416918429
-0.243202416918429 x 100 = -24.32%