-94.12% is the change from 357 to 21
Calculation steps:
[( 21 - 357 ) ÷ 357] x 100 = -94.12%
Formula
Percentage change = [(21 - 357) / 357] x 100
Subtract the new number by the original number
21 - 357 = -336
-336 ÷ 357 = -0.9411764705882353
-0.9411764705882353 x 100 = -94.12%