345% is the change from 120 to 534
Calculation steps:
[( 534 - 120 ) ÷ 120] x 100 = 345%
Formula
Percentage change = [(534 - 120) / 120] x 100
Subtract the new number by the original number
534 - 120 = 414
414 ÷ 120 = 3.45
3.45 x 100 = 345%
Example