-59.24% is the change from 687 to 280
Calculation steps:
[( 280 - 687 ) ÷ 687] x 100 = -59.24%
Formula
Percentage change = [(280 - 687) / 687] x 100
Subtract the new number by the original number
280 - 687 = -407
-407 ÷ 687 = -0.5924308588064047
-0.5924308588064047 x 100 = -59.24%