How this calculation works
Find the quantity-weighted acquisition price of two purchases of the same stock. A larger lot has more influence on the average than a smaller one. The result is a blended cost before transaction charges, not a forecast of the share price or an assessment of whether another purchase is suitable.
Worked example
This example uses illustrative inputs. Your current result is shown above.
Buy 100 shares at ₹500 and another 50 at ₹400. Total cost is ₹50,000 + ₹20,000 = ₹70,000 across 150 shares. Average acquisition price is ₹70,000 ÷ 150 = ₹466.67, not the unweighted midpoint of ₹450.
Assumptions and limits
- Both lots are the same security and their quantities use the same share units.
- No sale, stock split, bonus issue or other corporate action occurs between the entered lots.
- Brokerage, taxes and other acquisition charges are not included in the entered unit prices automatically.
Questions people ask
Why not average the two prices directly?
A simple midpoint treats both lots as equally large. Weighting by quantity gives the price that reconciles total cost with the actual number of shares.
Is this my break-even selling price?
It is the blended purchase price before costs. Selling charges and any excluded acquisition costs can make the cash break-even price higher.
Can this calculate taxable gains after a partial sale?
No. It does not track sale dates, lot selection, tax holding periods or cost-basis rules.