-67.87% is the change from 996 to 320
Calculation steps:
[( 320 - 996 ) ÷ 996] x 100 = -67.87%
Formula
Percentage change = [(320 - 996) / 996] x 100
Subtract the new number by the original number
320 - 996 = -676
-676 ÷ 996 = -0.678714859437751
-0.678714859437751 x 100 = -67.87%