Basic Formulas of Bar Graphs
Here are some of the most important formulas for solving bar graph problems:
S.No  To Calculate  Formulas 

Average 
Total / Number of Elements 

x% of y 
(x/100)*y 

x is what % of y 
(x/y)*100 

Percentage change 
Percentage change = [(change in value)/(base value)]*100 
Quick Tip: Do you know? You can learn bar graphs formulas quickly if you first understand the fundamental concepts of bar graphs.
FAQsFAQs
How do you benefit from learning bar graphs formulas?
One of the significant benefits of understanding bar graphs formulas is the capability to quickly and accurately address simple formulabased questions.
How to remember bar graphs formulas for a longer time?
Following are the techniques you can use to memorise bar graphs formulas:
For a start, you can start understanding the concepts of the bar graphs. It will help you find out why a formula is used.
Keep a separate piece of paper and write down each formula on the bar graphs topic you need to memorise.
Write down and examine each bar graphs formula, but this time with intervals. Write the equation, then take a 2minute break to think about it before writing it again.
Your memory is more likely to associate with the formula you want to remember if you use it more often. Solve the problems employing the formula.
Visualise and repeat out loud the formula occasionally. Create bar graphs formulas flashcards to help with this. You can also use these flashcards while practicing the bar graphs questions.
The formula should be written down and posted somewhere you will see daily. They'll be subconsciously imprinted into your memory.
How conceptual understanding of bar graphs topic helps in remembering its formulas?
Conceptual understanding will help you to make sense of the bar graphs formulas. Conceptual understanding is concentrated on describing why things happen as opposed to how to make them happen. They help you understand the true motive for employing the bar graphs formulas.