78.24% is the change from 170 to 303
Calculation steps:
[( 303 - 170 ) ÷ 170] x 100 = 78.24%
Formula
Percentage change = [(303 - 170) / 170] x 100
Subtract the new number by the original number
303 - 170 = 133
133 ÷ 170 = 0.7823529411764706
0.7823529411764706 x 100 = 78.24%