Percentage: Increase/Decrease and Successive Change A percentage is a number or ratio that indicates the relative size of a part of a whole. It is expre...
Percentage: Increase/Decrease and Successive Change
A percentage is a number or ratio that indicates the relative size of a part of a whole. It is expressed as a number between 0 and 100, with 100 representing 100%.
Increase and Decrease:
Increase refers to the process of adding a certain amount to the original value. For example, if the original value is 10, increasing it by 5 would result in 15.
Decrease refers to the process of subtracting a certain amount from the original value. For example, if the original value is 15, decreasing it by 3 would result in 12.
Successive Change:
A successive change refers to the changes made to a value in a sequence of operations. For instance, if the price of a product increases by 10% and then decreases by 5%, the price has undergone two successive changes.
Successive changes can be positive or negative. For example, if the price increases by 10% and then decreases by 5%, the price has undergone two successive changes, resulting in a decrease of 5%.
Examples:
Increase: If the price of a car increases from 12,000, the price has increased by 20%.
Decrease: If the profit from a product is 8, the profit has decreased by 20%.
Successive Change: If the price of a shirt increases by 10% and then decreases by 5%, it has undergone two successive changes