-64.49% is the change from 873 to 310
Calculation steps:
[( 310 - 873 ) ÷ 873] x 100 = -64.49%
Formula
Percentage change = [(310 - 873) / 873] x 100
Subtract the new number by the original number
310 - 873 = -563
-563 ÷ 873 = -0.6449026345933563
-0.6449026345933563 x 100 = -64.49%