-63.23% is the change from 843 to 310
Calculation steps:
[( 310 - 843 ) ÷ 843] x 100 = -63.23%
Formula
Percentage change = [(310 - 843) / 843] x 100
Subtract the new number by the original number
310 - 843 = -533
-533 ÷ 843 = -0.6322657176749703
-0.6322657176749703 x 100 = -63.23%