304.13% is the change from 121 to 489
Calculation steps:
[( 489 - 121 ) ÷ 121] x 100 = 304.13%
Formula
Percentage change = [(489 - 121) / 121] x 100
Subtract the new number by the original number
489 - 121 = 368
368 ÷ 121 = 3.041322314049587
3.041322314049587 x 100 = 304.13%