-95.23% is the change from 440 to 21
Calculation steps:
[( 21 - 440 ) ÷ 440] x 100 = -95.23%
Formula
Percentage change = [(21 - 440) / 440] x 100
Subtract the new number by the original number
21 - 440 = -419
-419 ÷ 440 = -0.9522727272727273
-0.9522727272727273 x 100 = -95.23%