-71.43% is the change from 308 to 88
Calculation steps:
[( 88 - 308 ) ÷ 308] x 100 = -71.43%
Formula
Percentage change = [(88 - 308) / 308] x 100
Subtract the new number by the original number
88 - 308 = -220
-220 ÷ 308 = -0.7142857142857143
-0.7142857142857143 x 100 = -71.43%