Question

By what percent was x changed if we got 0.72x?

Answer 1

The percent change of x is -28%.

Step-by-step explanation:

To calculate the percent by which x changed, we can use the formula:

Percent change = (new value - original value) / original value * 100

Plugging in the given values, we have:

Percent change = (0.72x - x) / x * 100

Simplifying:

Percent change = (0.72 - 1) * 100 = -28%