-64.65% is the change from 611 to 216
Calculation steps:
[( 216 - 611 ) ÷ 611] x 100 = -64.65%
Formula
Percentage change = [(216 - 611) / 611] x 100
Subtract the new number by the original number
216 - 611 = -395
-395 ÷ 611 = -0.646481178396072
-0.646481178396072 x 100 = -64.65%