-73.09% is the change from 799 to 215
Calculation steps:
[( 215 - 799 ) ÷ 799] x 100 = -73.09%
Formula
Percentage change = [(215 - 799) / 799] x 100
Subtract the new number by the original number
215 - 799 = -584
-584 ÷ 799 = -0.7309136420525657
-0.7309136420525657 x 100 = -73.09%