-23.7% is the change from 308 to 235
Calculation steps:
[( 235 - 308 ) ÷ 308] x 100 = -23.7%
Formula
Percentage change = [(235 - 308) / 308] x 100
Subtract the new number by the original number
235 - 308 = -73
-73 ÷ 308 = -0.237012987012987
-0.237012987012987 x 100 = -23.7%