71.33% is the change from 300 to 514
Calculation steps:
[( 514 - 300 ) ÷ 300] x 100 = 71.33%
Formula
Percentage change = [(514 - 300) / 300] x 100
Subtract the new number by the original number
514 - 300 = 214
214 ÷ 300 = 0.7133333333333334
0.7133333333333334 x 100 = 71.33%