-42.2% is the change from 1000 to 578
Calculation steps:
[( 578 - 1000 ) ÷ 1000] x 100 = -42.2%
Formula
Percentage change = [(578 - 1000) / 1000] x 100
Subtract the new number by the original number
578 - 1000 = -422
-422 ÷ 1000 = -0.422
-0.422 x 100 = -42.2%