-26.64% is the change from 687 to 504
Calculation steps:
[( 504 - 687 ) ÷ 687] x 100 = -26.64%
Formula
Percentage change = [(504 - 687) / 687] x 100
Subtract the new number by the original number
504 - 687 = -183
-183 ÷ 687 = -0.2663755458515284
-0.2663755458515284 x 100 = -26.64%