Math Antics - Number Patterns

Percent change is calculated by dividing the absolute change by the original amount and multiplying by 100.

Percent change refers to the relative change expressed using percentages, relating the amount of change to the number 100.

To calculate percent change, take the absolute change, divide it by the original amount, and multiply the result by 100.

The term 'percent' literally means 'per 100'.

If you start with 100 of something and get 20 more, you have a 20% increase, calculated by the amount 20 per the original 100.

Almost any original value and any amount of change can be represented as a percent change using equivalent fractions.

Percent change = (Absolute change/original value) x 100. For example, if you start with $750 and get $150 more, it's a 20% increase.

If the original amount doubles, it's an increase of 100%.

Calculate the absolute change by subtracting the original amount from the new amount and then use the percent change formula.

If the new amount is larger than the original, you have a percent increase; if smaller, a percent decrease.

Use your intuition to analyze if the answer makes sense instead of just memorizing formulas because an increase can't result in a decrease.

Going from 1 to 3 represents a 200% increase.

Going from 3 to 1 represents a 67% decrease.

Percent changes can be greater than 100% because they compare the change to the original values.

Intuition helps determine if results make sense beyond memorized formulas, ensuring the logical correctness of the calculation.

Percent change is calculated by dividing the absolute change by the original amount and multiplying by 100.

Percent change refers to the relative change expressed using percentages, relating the amount of change to the number 100.