843.81% is the change from 105 to 991
Calculation steps:
[( 991 - 105 ) ÷ 105] x 100 = 843.81%
Formula
Percentage change = [(991 - 105) / 105] x 100
Subtract the new number by the original number
991 - 105 = 886
886 ÷ 105 = 8.438095238095238
8.438095238095238 x 100 = 843.81%