5.15% is the change from 97 to 102
Calculation steps:
[( 102 - 97 ) ÷ 97] x 100 = 5.15%
Formula
Percentage change = [(102 - 97) / 97] x 100
Subtract the new number by the original number
102 - 97 = 5
5 ÷ 97 = 0.05154639175257732
0.05154639175257732 x 100 = 5.15%