-87.07% is the change from 232 to 30
Calculation steps:
[( 30 - 232 ) ÷ 232] x 100 = -87.07%
Formula
Percentage change = [(30 - 232) / 232] x 100
Subtract the new number by the original number
30 - 232 = -202
-202 ÷ 232 = -0.8706896551724138
-0.8706896551724138 x 100 = -87.07%