The phrase "a marked increase from" is correct and usable in written English.
It is used as a comparison to describe a large increase in something. For example, "The recent sales figures show a marked increase from last year's numbers."
This year's class tops by two the previous high-water mark for Academy women, reached in 2003 and 2004, and is a marked increase from the long history of single-digit totals for women.
The figure would be a marked increase from an earlier projected loss of ¥280 billion.
It was a marked increase from last season, one attributable to Garnett, Pierce, and Andrei Kirilenko, a high-profile free-agent acquisition.
Deposits now make up 54 percent of the banks' total funding, a marked increase from precrisis levels of about 40 percent — driven in part by tougher regulations.
That's a marked increase from the five years before 2007, when violent crime actually fell by 2.8 percent, and the kidnapping of women rose by 41 percent.
That is a marked increase from less than three years ago, when Congress enacted an energy law that included a national mandate for the increased use of renewable fuel in gasoline, setting off the ethanol rush.
A marked increase occurred from 2001 when BPs became available as PBS prescriptions.
Secondary astigmatism showed a marked increase ranging from 62% to 195% for 3.0 and 6.0 mm pupil sizes.
Late neonatal mortality rates exhibited a more evident declining trend (P < 0.0001) (Fig. 2), although a marked increase occurred from 2009 to 2010.
While in all eight cases, mean GR showed either a minimal change or even an improvement compared to baseline (i.e., mean GR measured −0.5 ± 1.4 mm), in all previous studies, mean GR showed a marked increase varying from to 0.3 to 1.4 mm [ 4, 17, 23, 25, 28, 31].
The numbers for October 2014 are a marked increase (37%) from the year before.
