-90.99% is the change from 910 to 82
Calculation steps:
[( 82 - 910 ) ÷ 910] x 100 = -90.99%
Formula
Percentage change = [(82 - 910) / 910] x 100
Subtract the new number by the original number
82 - 910 = -828
-828 ÷ 910 = -0.9098901098901099
-0.9098901098901099 x 100 = -90.99%