-68.27% is the change from 980 to 311
Calculation steps:
[( 311 - 980 ) ÷ 980] x 100 = -68.27%
Formula
Percentage change = [(311 - 980) / 980] x 100
Subtract the new number by the original number
311 - 980 = -669
-669 ÷ 980 = -0.6826530612244898
-0.6826530612244898 x 100 = -68.27%