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Definition1

Title: Measurement

Grade Lesson s1-p1

Explanation: The best way to understand SAT-4 is by looking at some definitions. Take turns and read each definition for easy understanding.

Definition

Topics → Definition Example1 Example2 Example3

Definition: Percentage

A percentage expresses a number as a fraction of 100, denoted by the percent sign, "%".
To find the percentage of a number, multiply the number by 100 and then divide by the original amount.
The formula for calculating a percentage is:
\$"Percentage" = ("Part"/"whole") \times 100\$

$1$

Explanation:

The shopkeeper had 22 beads in total. Among them, 10 were red, and 12 were of a different color. The percentage of red beads is 45%.

Definition: Percentage Increase

Percentage increase is a way to measure how much a value has grown compared to its original amount, expressed as a percentage. It tells you what percent of the original value the increase represents. \$"Percentage(%)" = (("New value" − "Orginal value") / "Orginal value") × 100\$

$2$

Explanation:

In the given image, if we add 8% of 56, the result is 60.48.

Definition: Percentage Decrease

Percentage decrease is a way to measure how much a value has dropped compared to its original amount, expressed as a percentage. It tells you what percent of the original value the decrease represents. \$"Percentage(%)" = (("Orginal value"− "New value") / "Orginal value") × 100\$

$3$

Explanation:

In the given image, if we decrease 60 by 3%, the result is 58.2.