-33.23% is the change from 313 to 209
Calculation steps:
[( 209 - 313 ) ÷ 313] x 100 = -33.23%
Formula
Percentage change = [(209 - 313) / 313] x 100
Subtract the new number by the original number
209 - 313 = -104
-104 ÷ 313 = -0.33226837060702874
-0.33226837060702874 x 100 = -33.23%