400% is the change from 137 to 685
Calculation steps:
[( 685 - 137 ) ÷ 137] x 100 = 400%
Formula
Percentage change = [(685 - 137) / 137] x 100
Subtract the new number by the original number
685 - 137 = 548
548 ÷ 137 = 4
4 x 100 = 400%
Example