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Expressing as a Percentage

This guide provides a comprehensive overview of expressing values as percentages, using clear examples of both depreciation and appreciation. Learn how to convert fractions into percentages through simple calculations. For instance, discover how 17 out of 40 hens represent 42.5% happiness, and explore depreciation scenarios like Sammy's car value decreasing from £8000 to £5800, resulting in a 27.5% decline. Additionally, see how Senga's vase appreciates from £500 to £630, leading to a 26% increase. Perfect for beginners to grasp percentage calculations.

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Expressing as a Percentage

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  1. Expressing as a Percentage

  2. Remember Fraction → Percentage? 4/5 4 ÷ 5 X 100 80% 0.8

  3. Basic example 17 out of 40 hens are happy What percentage is this? Get Fraction →Decimal → Percentage 17/40 0.425 42.5%

  4. Percentage Depreciation (decrease) Sammy buys a car for £8000 A year later it is worth £5800 Percentage depreciation? Depreciation = Fraction = = 27.5% 8 000 – 5 800 = 2 200 2200 = 0.275 8000

  5. Percentage Appreciation (increase) Senga`s vase was worth £500 It’s value rises to £630 Percentage Appreciation? Appreciation = £130 Fraction = 26% 130 = 0.26 500

  6. Expressing as a Percentage Find amount of appreciation/depreciation Write as fraction → Convert to Percentage

  7. Ronnie’s van was worth £8 000 Now worth £5 600 Percentage Depreciation? Depreciation = 8 000 – 5 600 = 2 400 2 400 = 30% Fraction = = 0.3 8 000 Original Amount

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