-35.43% is the change from 621 to 401
Calculation steps:
[( 401 - 621 ) ÷ 621] x 100 = -35.43%
Formula
Percentage change = [(401 - 621) / 621] x 100
Subtract the new number by the original number
401 - 621 = -220
-220 ÷ 621 = -0.35426731078904994
-0.35426731078904994 x 100 = -35.43%