1140% is the change from 80 to 992
Calculation steps:
[( 992 - 80 ) ÷ 80] x 100 = 1140%
Formula
Percentage change = [(992 - 80) / 80] x 100
Subtract the new number by the original number
992 - 80 = 912
912 ÷ 80 = 11.4
11.4 x 100 = 1140%
Example