"go down from" is correct and usable in written English.
You can use it when speaking about a decrease in something (often quantity or size). Example sentence: "I saw the price go down from $100 to $50."
They could go down from the National League this season.
The lifetime allowance to go down from £1.5m to £1.25m.
That's the angle that you have to go down from the positive z axis.
"If we started cutting back, applications would go down from the students who need real outreach".
The lowest-priced tickets will go down from $650 to $500.
We've seen the stock go down from the time of the announcement".
I used to go down from London at weekends to see him.
I particularly like AssetBuilder, where annual fees start at 0.45 percent and go down from there.
They start with the knights and dames and then go down from there.
From the house of Sarhan they would go down from alley to alley, and from there to the village square.
"I hardly ever go down from here because this peak is civilization.
