-65.63% is the change from 611 to 210
Calculation steps:
[( 210 - 611 ) ÷ 611] x 100 = -65.63%
Formula
Percentage change = [(210 - 611) / 611] x 100
Subtract the new number by the original number
210 - 611 = -401
-401 ÷ 611 = -0.6563011456628478
-0.6563011456628478 x 100 = -65.63%