68.84% is the change from 507 to 856
Calculation steps:
[( 856 - 507 ) ÷ 507] x 100 = 68.84%
Formula
Percentage change = [(856 - 507) / 507] x 100
Subtract the new number by the original number
856 - 507 = 349
349 ÷ 507 = 0.6883629191321499
0.6883629191321499 x 100 = 68.84%