Package implements fixed-point decimal
package main
import "github.com/oguzbilgic/fpd"
func main() {
// Buy price of the security: $136.02
buyPrice := fpd.New(13602000, -5)
// Sell price of the security: $137.699
sellPrice := fpd.New(13769900, -5)
// Volume traded: 0.01
volume := fpd.New(1000000, -8)
// Trade fee percentage: 0.6%
feePer := fpd.New(6, -3)
buyCost := buyPrice.Mul(volume)
buyFee := buyPrice.Mul(volume).Mul(feePer)
sellRevenue := sellPrice.Mul(volume)
sellFee := sellPrice.Mul(volume).Mul(feePer)
// Initall account balance: $2.00000
balance := fpd.New(200000, -5)
balance = balance.Sub(buyCost)
balance = balance.Sub(buyFee)
balance = balance.Add(sellRevenue)
balance = balance.Sub(sellFee)
// Final balance
fmt.Println(balance)
// Did this trade turn into profit? :)
}http://godoc.org/github.com/oguzbilgic/fpd
The MIT License (MIT)