-68.78% is the change from 996 to 311
Calculation steps:
[( 311 - 996 ) ÷ 996] x 100 = -68.78%
Formula
Percentage change = [(311 - 996) / 996] x 100
Subtract the new number by the original number
311 - 996 = -685
-685 ÷ 996 = -0.6877510040160643
-0.6877510040160643 x 100 = -68.78%