Analysis of economic data should give full consideration to the normal, expected and announced three real numerical value. Normal is the historical data has been published, the market value is expected to be announced on the expected economic data. The right of these three methods is to value the right, to judge the impact on the market.

Calculation

Formula
(Sell Price -Buy Price) x Lot Size x Contract Size (+/- interest) - Commission
= Net Profit

Example 1(HKGOLD)

Trade:
Client Trade on the same day buy and sell 3 lot

Buy Price:
Each Tael HK$6,010

Sell Price:
Each Tael HK$6,165

Profit and Loss Calculation:
HK$(6,165 - 6,010) X 100 taels x 3 lot = HK$46,500

Example 2 (LLG)

Trade:
Client Trade on the same day buy and sell 3 lot

Buy Price:
Each Tael $656

Sell Price:
Each Tael $675

Profit and Loss Calculation:
($675-$656) X 100 ounce x 7.8 x 3 lot = HK$44,46