42.33% is the change from 300 to 427
Calculation steps:
[( 427 - 300 ) ÷ 300] x 100 = 42.33%
Formula
Percentage change = [(427 - 300) / 300] x 100
Subtract the new number by the original number
427 - 300 = 127
127 ÷ 300 = 0.42333333333333334
0.42333333333333334 x 100 = 42.33%