326.45% is the change from 121 to 516
Calculation steps:
[( 516 - 121 ) ÷ 121] x 100 = 326.45%
Formula
Percentage change = [(516 - 121) / 121] x 100
Subtract the new number by the original number
516 - 121 = 395
395 ÷ 121 = 3.2644628099173554
3.2644628099173554 x 100 = 326.45%