A summary statement, an itemized statement and an explanation of benefits are not versions of the same page. Here is what each one can prove, and which to request first.
Career and technical programs charge differently than they did a decade ago. Here is how the money and calendar are split now, and which parts of a credential still hold up years later.
A funeral bill is a stack of separate decisions, not one price. Here is how to tell the required line from the four that are yours to accept or refuse.
Legal work is priced three ways, and the structure you are quoted says what kind of problem the attorney believes you have. That is useful information by itself.
Pricing against a competitor copies their arithmetic without ever seeing it. The number that decides everything is how many hours a year can honestly be billed.
The difference between records that make a return straightforward and records that cost a weekend is not effort. It is entirely a question of when the effort happens.