1.18% is the change from 170 to 172
Calculation steps:
[( 172 - 170 ) ÷ 170] x 100 = 1.18%
Formula
Percentage change = [(172 - 170) / 170] x 100
Subtract the new number by the original number
172 - 170 = 2
2 ÷ 170 = 0.011764705882352941
0.011764705882352941 x 100 = 1.18%