-91.14% is the change from 824 to 73
Calculation steps:
[( 73 - 824 ) ÷ 824] x 100 = -91.14%
Formula
Percentage change = [(73 - 824) / 824] x 100
Subtract the new number by the original number
73 - 824 = -751
-751 ÷ 824 = -0.9114077669902912
-0.9114077669902912 x 100 = -91.14%