47.37% is the change from 342 to 504
Calculation steps:
[( 504 - 342 ) ÷ 342] x 100 = 47.37%
Formula
Percentage change = [(504 - 342) / 342] x 100
Subtract the new number by the original number
504 - 342 = 162
162 ÷ 342 = 0.47368421052631576
0.47368421052631576 x 100 = 47.37%