-15.57% is the change from 976 to 824
Calculation steps:
[( 824 - 976 ) ÷ 976] x 100 = -15.57%
Formula
Percentage change = [(824 - 976) / 976] x 100
Subtract the new number by the original number
824 - 976 = -152
-152 ÷ 976 = -0.1557377049180328
-0.1557377049180328 x 100 = -15.57%