craft a summary P&L and balance sheet using Bank of America's accounts (10-Ks) for the last three years, namely 2017, 2018 and 2019. Below are the assignment details.

1. Produce your 6-line P&L, both in dollars and functional and report your results

2. Report in a separate table the following key financial metrics for all three years: CoR, CIR, ROA, ROE

3. I need to see your excel files where you show how you work out the details.