-17.48% is the change from 824 to 680
Calculation steps:
[( 680 - 824 ) ÷ 824] x 100 = -17.48%
Formula
Percentage change = [(680 - 824) / 824] x 100
Subtract the new number by the original number
680 - 824 = -144
-144 ÷ 824 = -0.17475728155339806
-0.17475728155339806 x 100 = -17.48%