-35.1% is the change from 621 to 403
Calculation steps:
[( 403 - 621 ) ÷ 621] x 100 = -35.1%
Formula
Percentage change = [(403 - 621) / 621] x 100
Subtract the new number by the original number
403 - 621 = -218
-218 ÷ 621 = -0.35104669887278583
-0.35104669887278583 x 100 = -35.1%