-49.26% is the change from 406 to 206
Calculation steps:
[( 206 - 406 ) ÷ 406] x 100 = -49.26%
Formula
Percentage change = [(206 - 406) / 406] x 100
Subtract the new number by the original number
206 - 406 = -200
-200 ÷ 406 = -0.49261083743842365
-0.49261083743842365 x 100 = -49.26%