cost will be 40% of the chosen plan. E.g., for a Garage Plan ($30), the price of materials we intend to charge will be $12. For marketing purposes, we would like to round the price of materials to the closest integer amount that either ends with a 4 or with a 9. In other words, rather than $12 we would charge $14. Here is my scoring rubric (out of 10 points): • 5 points for any working solution • 1 point for good data structures • 1 point for additional cases (float input) • 1 point for proving the solution is correct • 1 point for readability (variable names, …) • 1 point for extra coding skills (no copy/paste, fast typing, keyboard shortcuts, finger position) The Retail Round exercise is impartial What makes for a good onsite coding exercise?