-26.57% is the change from 685 to 503
Calculation steps:
[( 503 - 685 ) ÷ 685] x 100 = -26.57%
Formula
Percentage change = [(503 - 685) / 685] x 100
Subtract the new number by the original number
503 - 685 = -182
-182 ÷ 685 = -0.2656934306569343
-0.2656934306569343 x 100 = -26.57%