-20.54% is the change from 662 to 526
Calculation steps:
[( 526 - 662 ) ÷ 662] x 100 = -20.54%
Formula
Percentage change = [(526 - 662) / 662] x 100
Subtract the new number by the original number
526 - 662 = -136
-136 ÷ 662 = -0.2054380664652568
-0.2054380664652568 x 100 = -20.54%