-65.47% is the change from 611 to 211
Calculation steps:
[( 211 - 611 ) ÷ 611] x 100 = -65.47%
Formula
Percentage change = [(211 - 611) / 611] x 100
Subtract the new number by the original number
211 - 611 = -400
-400 ÷ 611 = -0.6546644844517185
-0.6546644844517185 x 100 = -65.47%