60.55% is the change from 507 to 814
Calculation steps:
[( 814 - 507 ) ÷ 507] x 100 = 60.55%
Formula
Percentage change = [(814 - 507) / 507] x 100
Subtract the new number by the original number
814 - 507 = 307
307 ÷ 507 = 0.6055226824457594
0.6055226824457594 x 100 = 60.55%