-94.39% is the change from 999 to 56
Calculation steps:
[( 56 - 999 ) ÷ 999] x 100 = -94.39%
Formula
Percentage change = [(56 - 999) / 999] x 100
Subtract the new number by the original number
56 - 999 = -943
-943 ÷ 999 = -0.943943943943944
-0.943943943943944 x 100 = -94.39%