-54.75% is the change from 621 to 281
Calculation steps:
[( 281 - 621 ) ÷ 621] x 100 = -54.75%
Formula
Percentage change = [(281 - 621) / 621] x 100
Subtract the new number by the original number
281 - 621 = -340
-340 ÷ 621 = -0.5475040257648953
-0.5475040257648953 x 100 = -54.75%