997.59% is the change from 83 to 911
Calculation steps:
[( 911 - 83 ) ÷ 83] x 100 = 997.59%
Formula
Percentage change = [(911 - 83) / 83] x 100
Subtract the new number by the original number
911 - 83 = 828
828 ÷ 83 = 9.975903614457831
9.975903614457831 x 100 = 997.59%