48.82% is the change from 170 to 253
Calculation steps:
[( 253 - 170 ) ÷ 170] x 100 = 48.82%
Formula
Percentage change = [(253 - 170) / 170] x 100
Subtract the new number by the original number
253 - 170 = 83
83 ÷ 170 = 0.48823529411764705
0.48823529411764705 x 100 = 48.82%