Unfortunately it's not that simple. The 2% is actually converted into an allocation by projecting the pay credit (and maybe the interest credit depending on how the document is worded) to NRD at the interest crediting rate, converting it to an annuity using the plan terms (again, depending on how the document is worded) and then converting it back to a lump sum using the testing rate. Then that amount needs to get discounted back to the attained age using the testing rate. (8.5% usually.)
To add to complication, some documents have unusual traits such as normal form and how interest is credited and this needs to be factored into your method. The nice thing is that for the CB allocation, you can use the average for all NHCE's which is a big time help.
So if there are two NHCE's and one is excluded and has a 0% CB allocation and the other has a 4% CB allocation. You can say the group has a 2% average and add that to your 5% Profit Sharing Allocation and you just passed your 7% gateway.
There is probably situations I am not thinking of but that is how I believe it needs to be done most of the time. Sorry I have no regs, if you really want to see them you can message me and I'd be happy to help you find them.