P&L Calculator

Guides

Understand the number, not just the answer.

Short, practical explainers for the calculations that shape trades, prices and business decisions.

62 guides · Page 5 of 6

Tactile editorial illustration representing the rent vs buy calculationBorrowing & saving · 6 min readRent vs Buy: Comparing Long-Term Housing CostRent-versus-buy compares cumulative rent with a simplified ownership cost after accounting for mortgage payments, upkeep and the equity remaining in the homeRead guide →Tactile editorial illustration representing the percentage increase and decrease calculationEveryday math · 6 min readPercentage Increase and Decrease Formulas, with ExamplesThe percentage increase formula multiplies the original value by one plus the rate divided by 100Read guide →Tactile editorial illustration representing the percentage of a number calculationEveryday math · 6 min readHow to Calculate Percentage of a Number: Formula and InputsFinding a percentage of a number converts the percentage to a decimal multiplier and applies it to the base valueRead guide →Tactile editorial illustration representing the ratio calculationEveryday math · 6 min readHow to Simplify a Ratio and Convert It to a PercentageA ratio preserves the relative size of two quantitiesRead guide →Tactile editorial illustration representing the average calculationEveryday math · 6 min readHow to Calculate Average: Formula and InputsThe arithmetic mean distributes the total of all entered values evenly across their countRead guide →Tactile editorial illustration representing the fraction to decimal calculationEveryday math · 6 min readHow to Calculate Fraction to Decimal: Formula and InputsA fraction is a division statement: the numerator is divided by the denominatorRead guide →Tactile editorial illustration representing the tip calculationEveryday math · 6 min readHow to Calculate a Tip and Split the TotalA tip calculation applies the entered percentage to the bill base, adds that amount to the bill and, where requested, divides the total across the party.Read guide →Tactile editorial illustration representing the bill split calculationEveryday math · 6 min readHow to Split a Bill with Tax and TipAn equal bill split builds the payable total from the base bill, tax and tip, then divides it by the number of peopleRead guide →Tactile editorial scene of view tiles passing through a frame and becoming measured revenue stacksCreator earnings · 7 min readYouTube Earnings: How Views and RPM Estimate RevenueA YouTube earnings estimate needs a creator-side RPM, not a generic CPM copied from an advertiser reportRead guide →Tactile editorial scene of short-video tiles passing a qualification gate toward reward discsCreator earnings · 7 min readTikTok Earnings: Qualified Views, RPM and Creator RewardsA TikTok Creator Rewards estimate starts with qualified views rather than the public view counterRead guide →Tactile editorial scene of music discs feeding a royalty pool that divides into unequal rights-holder stacksCreator earnings · 7 min readSpotify Royalties: Why Streams Do Not Have a Fixed RateSpotify royalties are based on streamshare within royalty pools, not a guaranteed amount attached to each playRead guide →Tactile editorial scene of page inventory, filled ad slots and publisher revenue sharingCreator earnings · 7 min readWebsite Ad Revenue: CPM, Fill Rate and Publisher ShareWebsite ad revenue depends on more than trafficRead guide →