-65.79% is the change from 611 to 209
Calculation steps:
[( 209 - 611 ) ÷ 611] x 100 = -65.79%
Formula
Percentage change = [(209 - 611) / 611] x 100
Subtract the new number by the original number
209 - 611 = -402
-402 ÷ 611 = -0.6579378068739771
-0.6579378068739771 x 100 = -65.79%