Formulas
Profit %
Profit% = (SP − CP) ÷ CP × 100
Loss %
Loss% = (CP − SP) ÷ CP × 100
Selling Price
SP = CP × (100 + Profit%) ÷ 100
Cost Price
CP = SP × 100 ÷ (100 + Profit%)
How to Use
1
Choose Mode
Select what you want to find — P/L%, Selling Price, or Cost Price.
2
Enter Values
Enter the known values. Use a negative % for loss scenarios.
3
Instant Result
Get profit/loss amount, percentage, and full breakdown instantly.
Frequently Asked Questions
Profit% = (SP − CP) ÷ CP × 100. Always calculated on Cost Price unless stated otherwise.
CP = SP × 100 ÷ (100 + Profit%) = 1000 × 100 ÷ 125 = ₹800.
Marked Price (MP) is the listed price. Discount = MP − SP. Discount% = (MP − SP) ÷ MP × 100. Effective Profit% = (SP − CP) ÷ CP × 100.
Net discount = a + b − (ab/100) = 20 + 10 − (200/100) = 28%. The SP = MP × 0.80 × 0.90 = 0.72 × MP.