-73.67% is the change from 824 to 217
Calculation steps:
[( 217 - 824 ) ÷ 824] x 100 = -73.67%
Formula
Percentage change = [(217 - 824) / 824] x 100
Subtract the new number by the original number
217 - 824 = -607
-607 ÷ 824 = -0.7366504854368932
-0.7366504854368932 x 100 = -73.67%