302.48% is the change from 121 to 487
Calculation steps:
[( 487 - 121 ) ÷ 121] x 100 = 302.48%
Formula
Percentage change = [(487 - 121) / 121] x 100
Subtract the new number by the original number
487 - 121 = 366
366 ÷ 121 = 3.024793388429752
3.024793388429752 x 100 = 302.48%