-62.84% is the change from 837 to 311
Calculation steps:
[( 311 - 837 ) ÷ 837] x 100 = -62.84%
Formula
Percentage change = [(311 - 837) / 837] x 100
Subtract the new number by the original number
311 - 837 = -526
-526 ÷ 837 = -0.6284348864994026
-0.6284348864994026 x 100 = -62.84%