-82.79% is the change from 610 to 105
Calculation steps:
[( 105 - 610 ) ÷ 610] x 100 = -82.79%
Formula
Percentage change = [(105 - 610) / 610] x 100
Subtract the new number by the original number
105 - 610 = -505
-505 ÷ 610 = -0.8278688524590164
-0.8278688524590164 x 100 = -82.79%