-66.28% is the change from 611 to 206
Calculation steps:
[( 206 - 611 ) ÷ 611] x 100 = -66.28%
Formula
Percentage change = [(206 - 611) / 611] x 100
Subtract the new number by the original number
206 - 611 = -405
-405 ÷ 611 = -0.662847790507365
-0.662847790507365 x 100 = -66.28%