Square-Enix noted in their most recent fiscal report, that their digital division saw net sales rose by 17.5 percent year-on-year to 37.2 billion yen ($349.6 million).
The company has stated that those positive results come from the launch of both Final Fantasy X/X-2 HD Remaster and Final Fantasy XII The Zodiac Age on Switch/Xbox One.
Exact sales numbers are not known but it seems the games did very well indeed.