84.31% is the change from 102 to 188
Calculation steps:
[( 188 - 102 ) ÷ 102] x 100 = 84.31%
Formula
Percentage change = [(188 - 102) / 102] x 100
Subtract the new number by the original number
188 - 102 = 86
86 ÷ 102 = 0.8431372549019608
0.8431372549019608 x 100 = 84.31%