## What is Weight Loss?

Prior to discussing how to calculate weight loss, lets define weight loss. Weight loss is the amount by which a body decreases in weight. Weight loss is arrived at by comparing the weight of that body(or object) at two different instances, and finding that the latter weight is more than the current weight.

To calculate weight loss, is actually to calculate the amount of weight missing now, from the last time you measured the weight of the person or object. To do that, we need to calculate the **difference** between the two weight measurements.

NB: **Difference** is calculated by subtracting!

### Formula To Calculate Weight Loss!

Measurement of weight at time A = Akg

Measurement of weight at time B = Bkg

If value B is less than value value A, then there has been weight loss and therefore weight loss can be calculated; otherwise it’s a weight increase.

**Example.**

If Chris was weighing 80Kg two months ago and is now weighing 72Kgs, then there has been weight loss. This is because he weighs less now, than he weighed before.

Weight loss is the amount of weight (kg) lost over that period. Therefore, Chris’ weight lost over the last two months is calculated as follows.

Chris’ weight loss is 8kg over the last two months.

## Some Facts about Weight loss:

Weight loss is not constant. It will keep changing as long as the weight of the subject keeps changing.

Weight loss is dependent on time. Weight loss varies for different time intervals. For instance, Chris’ weight loss for the last two months is 8kg. But his weight loss after 3 months will be different if his weight changes.