-94.15% is the change from 820 to 48
Calculation steps:
[( 48 - 820 ) ÷ 820] x 100 = -94.15%
Formula
Percentage change = [(48 - 820) / 820] x 100
Subtract the new number by the original number
48 - 820 = -772
-772 ÷ 820 = -0.9414634146341463
-0.9414634146341463 x 100 = -94.15%