322.31% is the change from 121 to 511
Calculation steps:
[( 511 - 121 ) ÷ 121] x 100 = 322.31%
Formula
Percentage change = [(511 - 121) / 121] x 100
Subtract the new number by the original number
511 - 121 = 390
390 ÷ 121 = 3.2231404958677685
3.2231404958677685 x 100 = 322.31%