-83.44% is the change from 610 to 101
Calculation steps:
[( 101 - 610 ) ÷ 610] x 100 = -83.44%
Formula
Percentage change = [(101 - 610) / 610] x 100
Subtract the new number by the original number
101 - 610 = -509
-509 ÷ 610 = -0.8344262295081967
-0.8344262295081967 x 100 = -83.44%