It could be both too high or too low depending on the communicated expectations of the client. Which is I think the real issue here anyway.

But let’s say 15k for two months of a team of contractors. That’s 7.5k/mo. A team says at least two, but I think given they mention sales etc, that’s 3-5 people. Netting 2.5k/person before you take out built in profit margins, healthcare (because it’s dollars, I assume America) and more. That’s roughly 1.5k/person per month. (Of course they could have multiple projects but even then that’s a low amount imho for a contractor with sales)

If they’re expecting an off the shelf solution, then they’re getting fleeced on the costs and 15k is too high, but if they’re going to a company that does big solutions than they spent too little.

There’s too little info in general