-64.59% is the change from 610 to 216
Calculation steps:
[( 216 - 610 ) ÷ 610] x 100 = -64.59%
Formula
Percentage change = [(216 - 610) / 610] x 100
Subtract the new number by the original number
216 - 610 = -394
-394 ÷ 610 = -0.6459016393442623
-0.6459016393442623 x 100 = -64.59%