If cost price of an article is Rs400 and its selling price is Rs1000, then find profit percentage.

Answer

To find the profit percentage when the cost price and selling price of an article are given, we can follow these steps:

**Step 1: Identify the Cost Price (CP) and Selling Price (SP)**
- Cost Price (CP) = Rs 400
- Selling Price (SP) = Rs 1000

**Step 2: Calculate the Profit**
- Profit = Selling Price - Cost Price
- Profit = SP - CP = 1000 - 400 = Rs 600

**Step 3: Use the Profit Percentage Formula**
- The formula for profit percentage is:

\[ \text{Profit Percentage} = \left( \frac{\text{Profit}}{\text{Cost Price}} \right) \times 100 \]

**Step 4: Substitute the Values into the Formula**
- Substitute the values of Profit and Cost Price into the formula:

\[ \text{Profit Percentage} = \left( \frac{600}{400} \right) \times 100 \]

**Step 5: Simplify the Calculation**
- First, simplify the fraction:

\[ \frac{600}{400} = 1.5 \]

- Now multiply by 100:

\[ 1.5 \times 100 = 150 \]

**Step 6: State the Final Answer**
- Therefore, the profit percentage is **150%**.