76.47% is the change from 170 to 300
Calculation steps:
[( 300 - 170 ) ÷ 170] x 100 = 76.47%
Formula
Percentage change = [(300 - 170) / 170] x 100
Subtract the new number by the original number
300 - 170 = 130
130 ÷ 170 = 0.7647058823529411
0.7647058823529411 x 100 = 76.47%