How do you calculate percent increase?

To calculate percent increase, the formula used is the difference between the new value and the original value, divided by the original value. This result is then multiplied by 100 to convert it into a percentage. The correct formula, therefore, is:

[(new value - original value) / original value] x 100.

This method effectively determines how much the value has increased relative to its original state, providing insight into the growth or enhancement of that value.

For instance, if a value increases from 50 to 75, you first find the difference (75 - 50 = 25), divide that by the original value (25 / 50 = 0.5), and then multiply by 100 to get a percent increase of 50%.

The other formulations do not accurately reflect the concept of percent increase, as they either involve taking a negative difference or averaging the values instead of a proper comparison of change.