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:

• Two municipalities
  The horizontal distance between municipalities is 39 km. The average sinking is 7 permille. What is the difference in height between these municipalities?
• Chocolates left
  What is the equation for Mark? He had 84 boxes of candy to sell, half of which were dark chocolate and the other half white chocolate. He sold 75% of dark chocolate and 40% white. How many did you have left over?
• Promile
  Calculate the 17.6 ‰ of 353.
• Cone and cube
  About what percentage has cone with base radius r larger volume than a same high cube with square base with edge length r?
• Sea water
  Seawater contains about 6.5% salt. How many dm³ of distilled water must we pour into 21 dm³ of seawater to get water with 1.2% salt?
• Paddlers
  Students of canoeists traveled on a trip of three days 84 km. On the second day, they traveled 7% more than the first day and on the third day 5 km over the second day. How many kilometers are traveled each day?
• Slope of the pool
  Calculate the slope (ratio rise:run) of the bottom of the swimming pool long 40 m. The water depth at the beginning of the pool is 1.09 m (for children), and the depth at the end is 1.88 m (for swimmers). Calculated slope write it as a percentage and also
• Clock
  How many times a day do hands on a clock overlap?
• Suit
  The suit cost 124 euros. How much cost the pants if it is 30% cheaper than the jacket?
• Simple interest 3
  Find the simple interest if 11928 USD at 2% for 10 weeks.
• Climb in percentage
  The height difference between points A and B is 475 m. Calculate the percentage of route climbing if the horizontal distance between places A and B is 7.4 km.
• Barrel
  The barrel is filled with water up to 57% of its capacity. When we add two buckets will be filled to 73% of their capacity. What is the volume of a barrel if the volume of the bucket is 12 liters?
• Mortgage
  Family XY wants to take the bank mortgage (a loan for an apartment/house) for € 100,000. Bank processing the mortgage charges a fee of 0.79% of the amount borrowed. How many euros is this fee?
• Car rent
  Rental cars are paid a fixed daily fee plus 16 cents per kilometer traveled. Samuel wants to rent a car for a day and work out, which will cost 175 euros. When paying, he got a 20% discount on the daily fee, and the cost per kilometer was unchanged. Samue
• Profits
  Two members will make a profit of 52,000 EUR. The first earned 8% more and the second 10% more and thus earned 56,700 EUR together. How much will each initially earn?

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