-95.19% is the change from 437 to 21
Calculation steps:
[( 21 - 437 ) ÷ 437] x 100 = -95.19%
Formula
Percentage change = [(21 - 437) / 437] x 100
Subtract the new number by the original number
21 - 437 = -416
-416 ÷ 437 = -0.9519450800915332
-0.9519450800915332 x 100 = -95.19%