Design prototype — static sample data, no backend. All screens Build plan
Ctrl K
Exchange

New Buy / Sell

One screen for both directions. Amounts, profit and stock update live as you type.

Transaction details

Rate (₹ per 1 USD) *

Allowed without approval: 83.48 – 84.32 (±0.50% of standard). Outside this range the transaction goes to Admin for approval.

Charges

Summary

Type
SELL
Quantity × rate
2,500.00 × 83.75
Amount
₹2,09,375.00
Charges
+ ₹250.00
Customer pays
₹2,09,625.00
Received now
₹1,50,000.00
Added to customer balance
₹59,625.00
Average cost83.2400
Cost of these USD₹2,08,100.00
Estimated profit+₹1,275.00
Stock after: USD 3,150.00 → 650.00
Number on save: EX-000419

Saving posts the transaction, updates stock, average cost, customer balance and the ledger in one database transaction. Double-click safe (idempotency key).