-56.15% is the change from 821 to 360
Calculation steps:
[( 360 - 821 ) ÷ 821] x 100 = -56.15%
Formula
Percentage change = [(360 - 821) / 821] x 100
Subtract the new number by the original number
360 - 821 = -461
-461 ÷ 821 = -0.561510353227771
-0.561510353227771 x 100 = -56.15%