-62.96% is the change from 837 to 310
Calculation steps:
[( 310 - 837 ) ÷ 837] x 100 = -62.96%
Formula
Percentage change = [(310 - 837) / 837] x 100
Subtract the new number by the original number
310 - 837 = -527
-527 ÷ 837 = -0.6296296296296297
-0.6296296296296297 x 100 = -62.96%