-37.14% is the change from 824 to 518
Calculation steps:
[( 518 - 824 ) ÷ 824] x 100 = -37.14%
Formula
Percentage change = [(518 - 824) / 824] x 100
Subtract the new number by the original number
518 - 824 = -306
-306 ÷ 824 = -0.3713592233009709
-0.3713592233009709 x 100 = -37.14%