-82.16% is the change from 824 to 147
Calculation steps:
[( 147 - 824 ) ÷ 824] x 100 = -82.16%
Formula
Percentage change = [(147 - 824) / 824] x 100
Subtract the new number by the original number
147 - 824 = -677
-677 ÷ 824 = -0.8216019417475728
-0.8216019417475728 x 100 = -82.16%