A percentage gain or loss on an investment is extremely useful to investors who monitor performance. Calculating it is quite easy. Here's what you need to know.

How to calculate Simply put, an unrealized gain or loss is the difference between an investment's value now, and its value at a certain point in the past.

How to calculate Simply put, an unrealized gain or loss is the difference between an investment's value now, and its value at a certain point in the past.

Simply put, an unrealized gain or loss is the difference between an investment's value now, and its value at a certain point in the past. The calculation can be done for any time period, such as ...

Calculating the total percentage gain or loss on a portfolio differs from analyzing the gains or loss on an individual stock.

This difference is the unrealized gain of your private equity. The difference results to unrealized loss if the realizable value of your stock falls below the purchase price.

The article How to Calculate Gain or Loss on a Bond Redemption originally appeared on Fool.com. Try any of our Foolish newsletter services free for 30 days.

Below, we'll look more closely at how bond redemptions get taxed and how to calculate gain or loss. Image source: Getty Images.

Below, we'll look more closely at how bond redemptions get taxed and how to calculate gain or loss. 2 kinds of bond redemptions Bonds get paid back in two different ways.