-87.9% is the change from 835 to 101
Calculation steps:
[( 101 - 835 ) ÷ 835] x 100 = -87.9%
Formula
Percentage change = [(101 - 835) / 835] x 100
Subtract the new number by the original number
101 - 835 = -734
-734 ÷ 835 = -0.8790419161676647
-0.8790419161676647 x 100 = -87.9%