550% is the change from 14 to 91
Calculation steps:
[( 91 - 14 ) ÷ 14] x 100 = 550%
Formula
Percentage change = [(91 - 14) / 14] x 100
Subtract the new number by the original number
91 - 14 = 77
77 ÷ 14 = 5.5
5.5 x 100 = 550%
Example