Aptitude Topics
Profit & Loss Applications
Profit and loss calculations are direct applications of percentages, where cost price serves as the base value (100%).
Fundamental Principles
Profit Percentage
(Profit / Cost Price) × 100
Loss Percentage
(Loss / Cost Price) × 100
Essential Formulation Tips
- Unless explicitly stated otherwise, profit and loss percentages are always calculated using the Cost Price (CP) as the base.
Shortcut Execution Techniques
- Selling at a profit of 20% means Selling Price (SP) = 120% of CP. Selling at a loss of 20% means SP = 80% of CP.
Contextual Inquiries (FAQs)
Q: What is marked price?
A:
Example Breakdown: Basic Profit Margin Calculation
Core structural framework supporting commercial arithmetic streams.Problem QueryAn item bought for $200 is sold for $250. Calculate the profit percentage.
Step-By-Step Solution Path
Profit = 250 - 200 = 50
Profit Percentage = (50 / 200) × 100
= 25%
Analytical Hint: Find the net absolute cash profit before comparing it to the base buying expense.
Profit and Loss Percentage Set 1
Introductory checks evaluating simple cost and return differentials.
Q1. By selling a book for $72, a shopkeeper loses 10%. Find its cost price.