Assuming they aren't lying, you'll either want:

1. a near-future version of this text to reflect these promised savings, or
2. USD inflation to match the promised savings (as the budget and the savings are both expressed in that)
3. The whole of the savings to be returned to the taxpayer (like a dividend) which will likely cause option 2 or worse.

So if Elon claims that $2tn was saved and yet $7tn was still spent, then inflation (including wages) shall rise to ~40%.

(edit: took the wrong baseline number)