-63.93% is the change from 621 to 224
Calculation steps:
[( 224 - 621 ) ÷ 621] x 100 = -63.93%
Formula
Percentage change = [(224 - 621) / 621] x 100
Subtract the new number by the original number
224 - 621 = -397
-397 ÷ 621 = -0.6392914653784219
-0.6392914653784219 x 100 = -63.93%