-24.32% is the change from 407 to 308
Calculation steps:
[( 308 - 407 ) ÷ 407] x 100 = -24.32%
Formula
Percentage change = [(308 - 407) / 407] x 100
Subtract the new number by the original number
308 - 407 = -99
-99 ÷ 407 = -0.24324324324324326
-0.24324324324324326 x 100 = -24.32%