Retirement tax questions

I have two 1099-R's with different codes and account numbers but from same company. I can only assume one is an early withdrawal from a standard 401k account and one is an early withdrawal for a ROTH (post tax) account. the taxable amount is much lower in the ROTH account withdrawal. I hope I am answering the questions correctly. Entering each 1099-R is straight forward. I expected to see a 10% penalty but it seems to be more like 15%. Strange.