33.53% is the change from 507 to 677
Calculation steps:
[( 677 - 507 ) ÷ 507] x 100 = 33.53%
Formula
Percentage change = [(677 - 507) / 507] x 100
Subtract the new number by the original number
677 - 507 = 170
170 ÷ 507 = 0.33530571992110453
0.33530571992110453 x 100 = 33.53%