-35.27% is the change from 621 to 402
Calculation steps:
[( 402 - 621 ) ÷ 621] x 100 = -35.27%
Formula
Percentage change = [(402 - 621) / 621] x 100
Subtract the new number by the original number
402 - 621 = -219
-219 ÷ 621 = -0.3526570048309179
-0.3526570048309179 x 100 = -35.27%