-49.64% is the change from 415 to 209
Calculation steps:
[( 209 - 415 ) ÷ 415] x 100 = -49.64%
Formula
Percentage change = [(209 - 415) / 415] x 100
Subtract the new number by the original number
209 - 415 = -206
-206 ÷ 415 = -0.4963855421686747
-0.4963855421686747 x 100 = -49.64%