66.07% is the change from 507 to 842
Calculation steps:
[( 842 - 507 ) ÷ 507] x 100 = 66.07%
Formula
Percentage change = [(842 - 507) / 507] x 100
Subtract the new number by the original number
842 - 507 = 335
335 ÷ 507 = 0.6607495069033531
0.6607495069033531 x 100 = 66.07%