-62.62% is the change from 840 to 314
Calculation steps:
[( 314 - 840 ) ÷ 840] x 100 = -62.62%
Formula
Percentage change = [(314 - 840) / 840] x 100
Subtract the new number by the original number
314 - 840 = -526
-526 ÷ 840 = -0.6261904761904762
-0.6261904761904762 x 100 = -62.62%