-87.5% is the change from 432 to 54
Calculation steps:
[( 54 - 432 ) ÷ 432] x 100 = -87.5%
Formula
Percentage change = [(54 - 432) / 432] x 100
Subtract the new number by the original number
54 - 432 = -378
-378 ÷ 432 = -0.875
-0.875 x 100 = -87.5%
Example