63.31% is the change from 507 to 828
Calculation steps:
[( 828 - 507 ) ÷ 507] x 100 = 63.31%
Formula
Percentage change = [(828 - 507) / 507] x 100
Subtract the new number by the original number
828 - 507 = 321
321 ÷ 507 = 0.6331360946745562
0.6331360946745562 x 100 = 63.31%