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Sagot :
A percentage increase from 80 to 100 is equal to 25%.
What is a percentage?
A percentage can be defined as any number that is expressed as a fraction of hundred (100). This ultimately implies that, a percentage indicates the hundredth parts of any given number.
The types of percentage.
In Mathematics, there are two main types of percentage and these include the following:
- Percentage decrease
- Percentage increase
Mathematically, percentage increase can be calculated by using this formula:
Percentage increase = [Final value - Initial value]/Initial value × 100
Substituting the given parameters into the formula, we have;
Percentage increase = [100 - 80]/80 × 100
Percentage increase = [20]/80 × 100
Percentage increase = 1/4 × 100
Percentage increase = 25%.
Read more on percentage increase here: brainly.com/question/11360390
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