-49.63% is the change from 409 to 206
Calculation steps:
[( 206 - 409 ) ÷ 409] x 100 = -49.63%
Formula
Percentage change = [(206 - 409) / 409] x 100
Subtract the new number by the original number
206 - 409 = -203
-203 ÷ 409 = -0.4963325183374083
-0.4963325183374083 x 100 = -49.63%