-84.54% is the change from 621 to 96
Calculation steps:
[( 96 - 621 ) ÷ 621] x 100 = -84.54%
Formula
Percentage change = [(96 - 621) / 621] x 100
Subtract the new number by the original number
96 - 621 = -525
-525 ÷ 621 = -0.8454106280193237
-0.8454106280193237 x 100 = -84.54%