-51.95% is the change from 435 to 209
Calculation steps:
[( 209 - 435 ) ÷ 435] x 100 = -51.95%
Formula
Percentage change = [(209 - 435) / 435] x 100
Subtract the new number by the original number
209 - 435 = -226
-226 ÷ 435 = -0.5195402298850574
-0.5195402298850574 x 100 = -51.95%