75.44% is the change from 342 to 600
Calculation steps:
[( 600 - 342 ) ÷ 342] x 100 = 75.44%
Formula
Percentage change = [(600 - 342) / 342] x 100
Subtract the new number by the original number
600 - 342 = 258
258 ÷ 342 = 0.7543859649122807
0.7543859649122807 x 100 = 75.44%