-90.5% is the change from 621 to 59
Calculation steps:
[( 59 - 621 ) ÷ 621] x 100 = -90.5%
Formula
Percentage change = [(59 - 621) / 621] x 100
Subtract the new number by the original number
59 - 621 = -562
-562 ÷ 621 = -0.9049919484702094
-0.9049919484702094 x 100 = -90.5%