-90.61% is the change from 916 to 86
Calculation steps:
[( 86 - 916 ) ÷ 916] x 100 = -90.61%
Formula
Percentage change = [(86 - 916) / 916] x 100
Subtract the new number by the original number
86 - 916 = -830
-830 ÷ 916 = -0.9061135371179039
-0.9061135371179039 x 100 = -90.61%