-70.51% is the change from 824 to 243
Calculation steps:
[( 243 - 824 ) ÷ 824] x 100 = -70.51%
Formula
Percentage change = [(243 - 824) / 824] x 100
Subtract the new number by the original number
243 - 824 = -581
-581 ÷ 824 = -0.7050970873786407
-0.7050970873786407 x 100 = -70.51%