I need formula's for figuring out % problems. example 7 is what percent of 4

or %125 of what is 85?
or 22.2% of 45 is ?

To calculate percentages, you can use the following formulas:

1. Finding the value of a percentage: To find what percent one number is of another number, use the formula:
Percentage = (Part / Whole) * 100

Let's take your first example: "7 is what percent of 4?"

Percentage = (7 / 4) * 100
Percentage = 175%

So, 7 is 175% of 4.

2. Finding the value when given a percentage: To find what value a certain percentage represents of another number, use the formula:
Value = (Percentage / 100) * Whole

For your second example: "%125 of what is 85?"

Value = (125 / 100) * 85
Value = 106.25

So, 125% of 85 is 106.25.

3. Finding the percentage of a number: To find a certain percentage of a given number, use the formula:
Percentage Value = (Percentage / 100) * Number

In your third example: "22.2% of 45 is?"

Percentage Value = (22.2 / 100) * 45
Percentage Value = 9.99

So, 22.2% of 45 is 9.99.

Remember to adjust the formula and apply the appropriate math operations based on your specific scenario.