-39.76% is the change from 835 to 503
Calculation steps:
[( 503 - 835 ) ÷ 835] x 100 = -39.76%
Formula
Percentage change = [(503 - 835) / 835] x 100
Subtract the new number by the original number
503 - 835 = -332
-332 ÷ 835 = -0.3976047904191617
-0.3976047904191617 x 100 = -39.76%
Example