85.45% is the change from 55 to 102
Calculation steps:
[( 102 - 55 ) ÷ 55] x 100 = 85.45%
Formula
Percentage change = [(102 - 55) / 55] x 100
Subtract the new number by the original number
102 - 55 = 47
47 ÷ 55 = 0.8545454545454545
0.8545454545454545 x 100 = 85.45%