-64.3% is the change from 577 to 206
Calculation steps:
[( 206 - 577 ) ÷ 577] x 100 = -64.3%
Formula
Percentage change = [(206 - 577) / 577] x 100
Subtract the new number by the original number
206 - 577 = -371
-371 ÷ 577 = -0.6429809358752167
-0.6429809358752167 x 100 = -64.3%