114% is the change from 300 to 642
Calculation steps:
[( 642 - 300 ) ÷ 300] x 100 = 114%
Formula
Percentage change = [(642 - 300) / 300] x 100
Subtract the new number by the original number
642 - 300 = 342
342 ÷ 300 = 1.14
1.14 x 100 = 114%
Example