Percentage calculator

Complete the row that represents your percentage problem.

Enter the values in a row and click Calculate.

We know three variables from school: percentage (p), percentage part (c) and base (z). They are connected by the formula .

What is % of ?
is what percent of ?
is % of what?
The fraction / is what percent?
% increase of is
% decrease of is
% is what fraction/number?
What is the percentage increase/decrease from to ?
Climb/descent of % is what angle in degrees?
Climb/descent of degrees is what percent?
If a goods sells for after a % markdown, what was its original price?

What is a percentage?

A percentage is a ratio whose second term is always 100. The term "percent" means parts per hundred. It originates from the Latin phrase per centum, which translates to "per hundred." In mathematics, the symbol % is used to denote percentages, and it can also be abbreviated as pct.
For example, 12% (read as 'twelve percent') is equivalent to:

• The fraction 12/100,
• The simplified fraction 3/25, or
• The decimal 0.12.

Percentages are commonly used to express how large or small one quantity is relative to another. They provide a standardized way to compare proportions and understand relationships between quantities.

Percentage in word problems:

• Dimensions of a fabric
  How many m² of fabric is needed to make a tent of a regular 3-sided prism if it is necessary to count on a 2% reserve of fabric? Dimensions - 2m 1.6m and height 1.4m
• Ski course
  From 99 children who participated in the ski course were 23 excellent skiers, 13 good and 20 average and the rest were beginners. Calculate this data in percentages.
• Clock
  How many times a day do hands on a clock overlap?
• Simple interest
  Peter put into bank 853 euros deposit. After 7 years on account, overall was 984 euro. What was the interest rate if the bank added simple interest?
• 100 %
  How much is 100% if 82 % is 77?
• Fertilizer
  Mr. Gherkin uses for fertilization 7% solution of fertilizer. 9 liters of it still left. How much water must be added to the solution to make only the 4% solution?
• Obtained 2530
  The weight of the veal obtained is 64% of the total weight of live calves. What was the weight of the live calves, from which 16,830 kg of veal were obtained?

• Connecting 2990
  We use 540 m of mesh, of which 20% are for connecting corners. How much mesh did we use to join the corners?
• Shots
  Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
• Three shapes
  1/5 of a circle is shaded. The area's ratio of a square and the sum of a| rectangle and the circle is 1:2. 60% of the square is shaded, and 1/3 of the rectangle is shaded. What is the ratio of the area of the circle to that of the rectangle?
• Peroxide
  How many ml should we pour 30% of peroxide (H2O2) into 100ml H2O to give a 20% solution?
• Substance solution
  During spraying, there are 4 per mille of active substance per 6 l of water. How many ml of active substance do we add to the spray?
• Prime number
  Jan wrote any number from 1 to 20. What is the probability that he wrote the prime number?
• Following 7774
  The store sells 3 types of cakes: poppy, cottage cheese, and jam. They all cost the same. As of yesterday, the following offer applies: If you buy any 8 of these cakes, you will pay for only 5. How much percent less will I pay now for 8 of these cakes?
• Pyramid-shaped 7820
  The pyramid-shaped tent has a square base with a side size of 2.2m and a height of 1.8m. How many square meters of tent canvas are needed to make it if we count an extra five percent for the foundation?

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Frequently searched percent calculations