-29.52% is the change from 315 to 222
Calculation steps:
[( 222 - 315 ) ÷ 315] x 100 = -29.52%
Formula
Percentage change = [(222 - 315) / 315] x 100
Subtract the new number by the original number
222 - 315 = -93
-93 ÷ 315 = -0.29523809523809524
-0.29523809523809524 x 100 = -29.52%