68.72% is the change from 406 to 685
Calculation steps:
[( 685 - 406 ) ÷ 406] x 100 = 68.72%
Formula
Percentage change = [(685 - 406) / 406] x 100
Subtract the new number by the original number
685 - 406 = 279
279 ÷ 406 = 0.687192118226601
0.687192118226601 x 100 = 68.72%