54.97% is the change from 342 to 530
Calculation steps:
[( 530 - 342 ) ÷ 342] x 100 = 54.97%
Formula
Percentage change = [(530 - 342) / 342] x 100
Subtract the new number by the original number
530 - 342 = 188
188 ÷ 342 = 0.5497076023391813
0.5497076023391813 x 100 = 54.97%