-8.12% is the change from 308 to 283
Calculation steps:
[( 283 - 308 ) ÷ 308] x 100 = -8.12%
Formula
Percentage change = [(283 - 308) / 308] x 100
Subtract the new number by the original number
283 - 308 = -25
-25 ÷ 308 = -0.08116883116883117
-0.08116883116883117 x 100 = -8.12%