300% is the change from 122 to 488
Calculation steps:
[( 488 - 122 ) ÷ 122] x 100 = 300%
Formula
Percentage change = [(488 - 122) / 122] x 100
Subtract the new number by the original number
488 - 122 = 366
366 ÷ 122 = 3
3 x 100 = 300%
Example