1100% is the change from 7 to 84
Calculation steps:
[( 84 - 7 ) ÷ 7] x 100 = 1100%
Formula
Percentage change = [(84 - 7) / 7] x 100
Subtract the new number by the original number
84 - 7 = 77
77 ÷ 7 = 11
11 x 100 = 1100%
Example