-25.32% is the change from 308 to 230
Calculation steps:
[( 230 - 308 ) ÷ 308] x 100 = -25.32%
Formula
Percentage change = [(230 - 308) / 308] x 100
Subtract the new number by the original number
230 - 308 = -78
-78 ÷ 308 = -0.2532467532467532
-0.2532467532467532 x 100 = -25.32%