ROI calculator
Profit versus cost. Or current value minus cost. Percent and dollars.
CopiedFAQ
What is the profit field? Profit is the gain: what you made, not the current value. ROI% = profit / cost × 100.
What if I have current value instead? Fill current value and cost. Profit is then current − cost. Same ROI%.
Can cost be zero? No. ROI is undefined if cost is zero.