-39.68% is the change from 867 to 523
Calculation steps:
[( 523 - 867 ) ÷ 867] x 100 = -39.68%
Formula
Percentage change = [(523 - 867) / 867] x 100
Subtract the new number by the original number
523 - 867 = -344
-344 ÷ 867 = -0.39677047289504036
-0.39677047289504036 x 100 = -39.68%