To find the percent change using the original value, which of these formulas is applicable?

The formula for percent change that uses the original value is found in the approach that calculates the difference between the new value and the original value, divides that difference by the original value, and then multiplies by 100 to convert it into a percentage.

This method captures how much the value has increased or decreased in relation to the starting point (the original value). The numerator, which is the difference between the new value and the original value, indicates the actual change in value. By dividing this change by the original value, it gives a proportionate measure of the change in terms of the original context. Multiplying by 100 converts the result into a percentage, providing a clear view of how significant the change is relative to the original amount.

In contrast, the other formulas either misrepresent the calculation or do not align with the standard method for determining percent change in the context of the original value.