-35.35% is the change from 331 to 214
Calculation steps:
[( 214 - 331 ) ÷ 331] x 100 = -35.35%
Formula
Percentage change = [(214 - 331) / 331] x 100
Subtract the new number by the original number
214 - 331 = -117
-117 ÷ 331 = -0.35347432024169184
-0.35347432024169184 x 100 = -35.35%