-45.91% is the change from 843 to 456
Calculation steps:
[( 456 - 843 ) ÷ 843] x 100 = -45.91%
Formula
Percentage change = [(456 - 843) / 843] x 100
Subtract the new number by the original number
456 - 843 = -387
-387 ÷ 843 = -0.45907473309608543
-0.45907473309608543 x 100 = -45.91%