-52.17% is the change from 437 to 209
Calculation steps:
[( 209 - 437 ) ÷ 437] x 100 = -52.17%
Formula
Percentage change = [(209 - 437) / 437] x 100
Subtract the new number by the original number
209 - 437 = -228
-228 ÷ 437 = -0.5217391304347826
-0.5217391304347826 x 100 = -52.17%