117.32% is the change from 456 to 991
Calculation steps:
[( 991 - 456 ) ÷ 456] x 100 = 117.32%
Formula
Percentage change = [(991 - 456) / 456] x 100
Subtract the new number by the original number
991 - 456 = 535
535 ÷ 456 = 1.1732456140350878
1.1732456140350878 x 100 = 117.32%