-52.5% is the change from 440 to 209
Calculation steps:
[( 209 - 440 ) ÷ 440] x 100 = -52.5%
Formula
Percentage change = [(209 - 440) / 440] x 100
Subtract the new number by the original number
209 - 440 = -231
-231 ÷ 440 = -0.525
-0.525 x 100 = -52.5%