diff --git a/client/src/pages/guide/english/mathematics/finding-a-percent/index.md b/client/src/pages/guide/english/mathematics/finding-a-percent/index.md
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--- a/client/src/pages/guide/english/mathematics/finding-a-percent/index.md
+++ b/client/src/pages/guide/english/mathematics/finding-a-percent/index.md
@@ -3,13 +3,35 @@ title: Finding a Percent
---
## Finding a Percent
-This is a stub. Help our community expand it.
+Percent literally means "out of a hundred" or "per hundred" ("cent" like century).
+
A percentage is just a different way of writing a decimal. For example, instead of writing 0.25, we write 25%. Or instead of writing 1.4213, we write 142.13%.
+
Percentages are created by moving the decimal point of a decimal two digits to the right and adding a percent sign (%) to the end of the number.
-This quick style guide will help ensure your pull request gets accepted.
+#### Mathematical Operations with Percentages
-
+The simplest way to perform math with percentages is to first convert them to decimals, perform the math, then convert the result back to a percentage.
+
+*Note: Addition and subtraction can be performed without any conversions.*
+
+###### Addition Example
+
+Consider the problem: 14% + 256%
+
+Simply add the numbers leave the percent sign after the result: 14 + 256 = 270%
+
+###### Multiplication Example
+
+Consider the problem: 28% * 133%.
+
+1. Convert the percentages to decimals by moving the decimal point two spaces to the left (0.28 * 1.33)
+2. Perform the mathematical operation as you would normally (0.28 * 1.33 = 0.3724)
+3. Convert the result back into a percentage by moving the decimal point two spaces to the right (37.24%)
+
+*Division would follow the same steps.*
#### More Information:
+https://www.mathsisfun.com/percentage.html
+https://www.khanacademy.org/math/pre-algebra/pre-algebra-ratios-rates/pre-algebra-percent-problems/v/finding-percentages-example