65.48% is the change from 507 to 839
Calculation steps:
[( 839 - 507 ) ÷ 507] x 100 = 65.48%
Formula
Percentage change = [(839 - 507) / 507] x 100
Subtract the new number by the original number
839 - 507 = 332
332 ÷ 507 = 0.6548323471400395
0.6548323471400395 x 100 = 65.48%