考虑我们有售价,并给出了损益的百分比。我们必须找到产品的成本价。公式如下-
$$Cost Price = \ frac {卖出价格* 100} {100+利润百分比} $$$$Cost Price = \ frac {卖出价格* 100} {100+损失百分比} $$
#include<iostream> using namespace std; float priceWhenProfit(int sellPrice, int profit) { return (sellPrice * 100.0) / (100 + profit); } float priceWhenLoss(int sellPrice, int loss) { return (sellPrice * 100.0) / (100 - loss); } int main() { int SP, profit, loss; SP = 1020; profit = 20; cout << "Cost Price When Profit: " << priceWhenProfit(SP, profit) << endl; SP = 900; loss = 10; cout << "Cost Price When loss: " << priceWhenLoss(SP, loss) << endl; }
输出结果
Cost Price When Profit: 850 Cost Price When loss: 1000