I built a calculator that shows what starting 5 years later actually changes

Most compound growth calculators give you one big future number. I wanted to see how much was my own contributions, then compare that plan with a 1% lower return or a five-year delay. Here’s the tool: nutpeek.com/compound-growth The numbers are hypothetical, of course. Is the side-by-side view useful, or is there a better comparison you'd want to see?