Key insights

• 📈 Explanation of percentage increase and decrease
• 🔢 Four easy steps to calculate percentage increase or decrease
• 📊 Examples of solving percentage increase and decrease
• 💰 Importance of percentage increase and decrease in sales and discounts
• 🔢 Formula for percentage increase: (new value - original value) / original value x 100
• 📝 Step-by-step calculation process explained
• 📐 Practical example using the formula
• 🔢 Calculation of percentage increase using four easy steps

Q&A

• How is the original value calculated in a specific scenario mentioned in the video?

  In a specific scenario mentioned in the video, the original value is calculated using the revised formula: Original value (ov) = present today / (1 - percentage decrease). The percentage decrease is converted to a decimal for the calculation, such as 10% becoming 0.10. This formula was used to determine that 50 students should have been present yesterday based on a 10% decrease from today's 45 students.

• What other scenarios are explained in the video?

  The video explains the calculation of percentage decrease, rate of discount, and solving for original or new values using specific formulas. It provides step-by-step examples for each scenario to ensure a comprehensive understanding of the concepts.

• What practical examples are used in the video?

  The video uses practical examples to demonstrate a 30% increase in weight and a 21.4% decrease in weight. It illustrates the application of the four-step process for calculating percentage increase and decrease in weight, which involves identifying the original and new values, subtraction, division, and converting to percentage form.

• How are percentage increase and decrease calculated in the video?

  The video illustrates the calculation of percentage increase and decrease using four easy steps. It includes the identification of original and new values, subtraction of original and new values, division, and multiplication to determine the percentage increase or decrease. This process is accompanied by step-by-step examples for better understanding.

• How does the video explain the calculation of percentage increase?

  The video explains the calculation of percentage increase using the formula (new value - original value) / original value x 100. It demonstrates the step-by-step calculation process by providing a practical example to ensure better understanding.

• What is the formula for percentage increase?

  The formula for percentage increase is (new value - original value) / original value x 100. It is used to calculate the percentage increase by determining the amount of increase in comparison to the original value.

• What are the four easy steps to calculate percentage increase or decrease?

  The four easy steps to calculate percentage increase or decrease are: identify the original and new values, find the increase or decrease, divide it by the original value, and multiply the result by 100. This process helps in measuring the amount of increase or decrease in comparison to the original value.

• What does the video cover?

  The video covers the explanation of percentage increase and decrease, four easy steps to calculate percentage increase or decrease, examples of solving percentage increase and decrease, and the importance of percentage increase and decrease in sales and discounts.

• 00:02 In this mathematics Tagalog tutorial, the speaker explains how to solve percentage increase and decrease using four easy steps and provides examples. Percentage increase measures the amount of increase in comparison to the original value, while percentage decrease measures the amount of decrease. To calculate percentage increase or decrease, follow four easy steps: identify the original and new values, find the increase or decrease, divide it by the original value, and multiply the result by 100. The same formula can be used with different terms like 'n value' for the new value and 'starting value' for the original value.
• 04:05 The video explains how to calculate percentage increase using the formula percentage increase = (new value - original value) / original value x 100. It demonstrates the steps involved in the calculation and provides a practical example.
• 07:23 The video explains how to calculate percentage increase using four easy steps and provides examples for better understanding. It demonstrates the process with detailed explanation and clear, step-by-step instructions. 👨‍💻
• 10:45 The calculations demonstrate a 30% increase in weight and a 21.4% decrease in weight using a four-step process and a formula.
• 13:57 The segment explains how to calculate percentage decrease, rate of discount, and solving for original or new values using specific formulas. It provides step-by-step examples for each scenario.
• 17:36 Yesterday, 50 students should have been present based on a 10% decrease from today's 45 students. The formula for calculating the original value was revised. The original value (ov) is calculated using the present value divided by (1 - percentage decrease). The percentage decrease is converted to a decimal for the calculation.