-50.6% is the change from 417 to 206
Calculation steps:
[( 206 - 417 ) ÷ 417] x 100 = -50.6%
Formula
Percentage change = [(206 - 417) / 417] x 100
Subtract the new number by the original number
206 - 417 = -211
-211 ÷ 417 = -0.5059952038369304
-0.5059952038369304 x 100 = -50.6%