-32.46% is the change from 456 to 308
Calculation steps:
[( 308 - 456 ) ÷ 456] x 100 = -32.46%
Formula
Percentage change = [(308 - 456) / 456] x 100
Subtract the new number by the original number
308 - 456 = -148
-148 ÷ 456 = -0.32456140350877194
-0.32456140350877194 x 100 = -32.46%