-61.2% is the change from 799 to 310
Calculation steps:
[( 310 - 799 ) ÷ 799] x 100 = -61.2%
Formula
Percentage change = [(310 - 799) / 799] x 100
Subtract the new number by the original number
310 - 799 = -489
-489 ÷ 799 = -0.6120150187734669
-0.6120150187734669 x 100 = -61.2%