341.32% is the change from 121 to 534
Calculation steps:
[( 534 - 121 ) ÷ 121] x 100 = 341.32%
Formula
Percentage change = [(534 - 121) / 121] x 100
Subtract the new number by the original number
534 - 121 = 413
413 ÷ 121 = 3.4132231404958677
3.4132231404958677 x 100 = 341.32%