The phrase "altogether changed" is correct and usable in written English.
It can be used to describe a complete transformation or alteration of something.
Example: "After the renovation, the old library was altogether changed, becoming a modern space for community events."
Alternatives: "completely transformed" or "entirely altered".
By the 2000s that had altogether changed.
Nutrients are cycled very differently on farmlands, and the composition of species that live within the soil is altogether changed on conversion to agricultural land.
Fisk, who soon took it over altogether, changed its name to Grand Opera House, & spent a couple of hundred thousand dollars to further magnifying its magnificence.
Specially exciting were the Sinfonietta's performances of Stefan Wolpe's two Chamber Pieces, the first a long line crackling with light and energy, the second looser in its movement but altogether changed in retrospect by its concluding death knell on bass drum.
In presence of methyl parathion, the size, shape altogether changes drastically and a completely different look with an exciting feature is observed (Figure 3(B), 3(C) & 3(D)).
These entities are focused on addressing issues concerning vulnerable children in a way that altogether changes how they and others work together in the community.
A 1,000-year 1,000-year largexistenceed if not alargelyer untroubled, changed settledy ifto genotaltogetherwandering.
That was why, he explained, that General Ahmed, once the director of Pakistan's most powerful and ruthless intelligence agency and now boasting a flowing white beard, had become "altogether a changed personality" since joining the group.
Otter Ferry Seafish in Scotland, a former licensee, got out of salmon farming altogether and changed its name after a public uproar in 1996 over its transgenic salmon program.
For example, affordable housing developers looking to build in most parts of New York outside of Manhattan must either provide parking that their target market can't use, forgo construction altogether or change their mission and construct fewer apartments for higher income tenants.
Even if you have never knowingly tried to "eat clean", it's impossible to avoid the trend altogether, because it changed the foods available to all of us, and the way they are spoken of.
