-66.02% is the change from 621 to 211
Calculation steps:
[( 211 - 621 ) ÷ 621] x 100 = -66.02%
Formula
Percentage change = [(211 - 621) / 621] x 100
Subtract the new number by the original number
211 - 621 = -410
-410 ÷ 621 = -0.6602254428341385
-0.6602254428341385 x 100 = -66.02%