Create a formula to calculate 401k earnings (total, employer contribution, and personal contribution) using the following inputs/variables. You can constrain the formula to the variables listed (you can ignore inflation, for example):

- percent to contribute (percent of salary contributing per year)

- annual salary

- annual salary increase

- current age

- age of retirement

- current 401k balance

- annual rate of return

- Employer match (%)

- max percentage of annual salary matched by employer