86.96% is the change from 115 to 215
Calculation steps:
[( 215 - 115 ) ÷ 115] x 100 = 86.96%
Formula
Percentage change = [(215 - 115) / 115] x 100
Subtract the new number by the original number
215 - 115 = 100
100 ÷ 115 = 0.8695652173913043
0.8695652173913043 x 100 = 86.96%