39.8% is the change from 490 to 685
Calculation steps:
[( 685 - 490 ) ÷ 490] x 100 = 39.8%
Formula
Percentage change = [(685 - 490) / 490] x 100
Subtract the new number by the original number
685 - 490 = 195
195 ÷ 490 = 0.3979591836734694
0.3979591836734694 x 100 = 39.8%