-65.21% is the change from 891 to 310
Calculation steps:
[( 310 - 891 ) ÷ 891] x 100 = -65.21%
Formula
Percentage change = [(310 - 891) / 891] x 100
Subtract the new number by the original number
310 - 891 = -581
-581 ÷ 891 = -0.6520763187429854
-0.6520763187429854 x 100 = -65.21%