-63.2% is the change from 845 to 311
Calculation steps:
[( 311 - 845 ) ÷ 845] x 100 = -63.2%
Formula
Percentage change = [(311 - 845) / 845] x 100
Subtract the new number by the original number
311 - 845 = -534
-534 ÷ 845 = -0.6319526627218935
-0.6319526627218935 x 100 = -63.2%