-25.25% is the change from 305 to 228
Calculation steps:
[( 228 - 305 ) ÷ 305] x 100 = -25.25%
Formula
Percentage change = [(228 - 305) / 305] x 100
Subtract the new number by the original number
228 - 305 = -77
-77 ÷ 305 = -0.25245901639344265
-0.25245901639344265 x 100 = -25.25%