Small changes add up faster than most people expect.
Ask around and you will get a different answer every time, so here is the short version.
Where to go from here
There is a deadline involved, and missing it costs more than the difference. Most of the confusion comes from two terms that sound alike and mean different things.
What actually changed
The practical effect is easier to see in a single example than in a summary. Nobody is required to explain this to you, which is half the problem.
What to check first
Nobody is required to explain this to you, which is half the problem. There is a deadline involved, and missing it costs more than the difference.
The short answer: check the date, then check the figure, then decide.