-32.6% is the change from 457 to 308
Calculation steps:
[( 308 - 457 ) ÷ 457] x 100 = -32.6%
Formula
Percentage change = [(308 - 457) / 457] x 100
Subtract the new number by the original number
308 - 457 = -149
-149 ÷ 457 = -0.32603938730853393
-0.32603938730853393 x 100 = -32.6%