-31.95% is the change from 313 to 213
Calculation steps:
[( 213 - 313 ) ÷ 313] x 100 = -31.95%
Formula
Percentage change = [(213 - 313) / 313] x 100
Subtract the new number by the original number
213 - 313 = -100
-100 ÷ 313 = -0.3194888178913738
-0.3194888178913738 x 100 = -31.95%