-85.67% is the change from 621 to 89
Calculation steps:
[( 89 - 621 ) ÷ 621] x 100 = -85.67%
Formula
Percentage change = [(89 - 621) / 621] x 100
Subtract the new number by the original number
89 - 621 = -532
-532 ÷ 621 = -0.856682769726248
-0.856682769726248 x 100 = -85.67%