-87.2% is the change from 422 to 54
Calculation steps:
[( 54 - 422 ) ÷ 422] x 100 = -87.2%
Formula
Percentage change = [(54 - 422) / 422] x 100
Subtract the new number by the original number
54 - 422 = -368
-368 ÷ 422 = -0.8720379146919431
-0.8720379146919431 x 100 = -87.2%