Selling Price with Markup

The purchase price of the material is 1000 CZK, and the margin is 35%.
What will be the selling price? This is not a trademark or commission.

Final Answer:

b =  1538.4615 Kc

Step-by-step explanation:

$$\begin{gathered} a=1000\text{kc} \\ r=35\%=\frac{35}{100}=\frac{7}{20}=0.35 \\ r=\frac{b-a}{b} \\ r\cdot b=b-a \\ b(1-r)=a \\ b=\frac{a}{1-r}=\frac{1000}{1-0.35}=1538.4615\text{Kc} \end{gathered}$$

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