-30.66% is the change from 685 to 475
Calculation steps:
[( 475 - 685 ) ÷ 685] x 100 = -30.66%
Formula
Percentage change = [(475 - 685) / 685] x 100
Subtract the new number by the original number
475 - 685 = -210
-210 ÷ 685 = -0.30656934306569344
-0.30656934306569344 x 100 = -30.66%
Example