-22.79% is the change from 408 to 315
Calculation steps:
[( 315 - 408 ) ÷ 408] x 100 = -22.79%
Formula
Percentage change = [(315 - 408) / 408] x 100
Subtract the new number by the original number
315 - 408 = -93
-93 ÷ 408 = -0.22794117647058823
-0.22794117647058823 x 100 = -22.79%