-32.06% is the change from 315 to 214
Calculation steps:
[( 214 - 315 ) ÷ 315] x 100 = -32.06%
Formula
Percentage change = [(214 - 315) / 315] x 100
Subtract the new number by the original number
214 - 315 = -101
-101 ÷ 315 = -0.32063492063492066
-0.32063492063492066 x 100 = -32.06%