-22.62% is the change from 305 to 236
Calculation steps:
[( 236 - 305 ) ÷ 305] x 100 = -22.62%
Formula
Percentage change = [(236 - 305) / 305] x 100
Subtract the new number by the original number
236 - 305 = -69
-69 ÷ 305 = -0.2262295081967213
-0.2262295081967213 x 100 = -22.62%