300% is the change from 107 to 428
Calculation steps:
[( 428 - 107 ) ÷ 107] x 100 = 300%
Formula
Percentage change = [(428 - 107) / 107] x 100
Subtract the new number by the original number
428 - 107 = 321
321 ÷ 107 = 3
3 x 100 = 300%
Example