-34.16% is the change from 685 to 451
Calculation steps:
[( 451 - 685 ) ÷ 685] x 100 = -34.16%
Formula
Percentage change = [(451 - 685) / 685] x 100
Subtract the new number by the original number
451 - 685 = -234
-234 ÷ 685 = -0.3416058394160584
-0.3416058394160584 x 100 = -34.16%