-49.01% is the change from 406 to 207
Calculation steps:
[( 207 - 406 ) ÷ 406] x 100 = -49.01%
Formula
Percentage change = [(207 - 406) / 406] x 100
Subtract the new number by the original number
207 - 406 = -199
-199 ÷ 406 = -0.49014778325123154
-0.49014778325123154 x 100 = -49.01%