66.09% is the change from 115 to 191
Calculation steps:
[( 191 - 115 ) ÷ 115] x 100 = 66.09%
Formula
Percentage change = [(191 - 115) / 115] x 100
Subtract the new number by the original number
191 - 115 = 76
76 ÷ 115 = 0.6608695652173913
0.6608695652173913 x 100 = 66.09%