-17.6% is the change from 1000 to 824
Calculation steps:
[( 824 - 1000 ) ÷ 1000] x 100 = -17.6%
Formula
Percentage change = [(824 - 1000) / 1000] x 100
Subtract the new number by the original number
824 - 1000 = -176
-176 ÷ 1000 = -0.176
-0.176 x 100 = -17.6%