-21.84% is the change from 403 to 315
Calculation steps:
[( 315 - 403 ) ÷ 403] x 100 = -21.84%
Formula
Percentage change = [(315 - 403) / 403] x 100
Subtract the new number by the original number
315 - 403 = -88
-88 ÷ 403 = -0.21836228287841192
-0.21836228287841192 x 100 = -21.84%