-59.12% is the change from 685 to 280
Calculation steps:
[( 280 - 685 ) ÷ 685] x 100 = -59.12%
Formula
Percentage change = [(280 - 685) / 685] x 100
Subtract the new number by the original number
280 - 685 = -405
-405 ÷ 685 = -0.5912408759124088
-0.5912408759124088 x 100 = -59.12%