39% is the change from 300 to 417
Calculation steps:
[( 417 - 300 ) ÷ 300] x 100 = 39%
Formula
Percentage change = [(417 - 300) / 300] x 100
Subtract the new number by the original number
417 - 300 = 117
117 ÷ 300 = 0.39
0.39 x 100 = 39%
Example