69.14% is the change from 405 to 685
Calculation steps:
[( 685 - 405 ) ÷ 405] x 100 = 69.14%
Formula
Percentage change = [(685 - 405) / 405] x 100
Subtract the new number by the original number
685 - 405 = 280
280 ÷ 405 = 0.691358024691358
0.691358024691358 x 100 = 69.14%