Percentage Calculator

Percentage is evaluated from Percentage, Base Number and Part / Result. The calculation reports X% of Y, Part is what% of Base and Original Before Percent.

Results

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About the Percentage Calculator

Percentage is treated here as a quantitative relation between Percentage, Base Number and Part / Result and X% of Y, Part is what% of Base and Original Before Percent.

The calculator uses a multi formula configuration. Each reported value is read as a direct evaluation of the stored rules with the declared field formats and units.

Formula basis:
Type 1 - X% of Y:
Result = Y x X / 100
Type 2 - Part is what% of Base:
Percentage = (Part / Base) x 100
Type 3 - Find Original (Base) when Part and% are known:
Base = Part / (Percentage / 100)

Interpret the outputs in the order shown by the result fields. Optional inputs affect only the outputs that depend on those variables.

Formula & How It Works

The calculation applies the following relations exactly as recorded in the metadata:

Type 1 - X% of Y:
Result = Y x X / 100
Type 2 - Part is what% of Base:
Percentage = (Part / Base) x 100
Type 3 - Find Original (Base) when Part and% are known:
Base = Part / (Percentage / 100)

Each output field is produced by substituting the supplied inputs into the relevant relation and then applying the declared rounding or text format.

Worked Examples

Example 1: Shop Discount Calculation

Inputs

percent_value: 25 base_value: 3200
X% of Y: 800. Part is what% of Base: 0%. Original Before Percent: 0

With Percentage = 25 and Base Number = 3,200 as the stated inputs, the result is X% of Y = 800, Part is what% of Base = 0% and Original Before Percent = 0. Each value corresponds to the declared output fields.

Example 2: Test Score Percentage

Inputs

base_value: 75 part_value: 63
X% of Y: 0. Part is what% of Base: 84%. Original Before Percent: inf

With Base Number = 75 and Part / Result = 63 as the stated inputs, the result is X% of Y = 0, Part is what% of Base = 84% and Original Before Percent = inf. Each value corresponds to the declared output fields.

Example 3: Reverse GST Calculation

Inputs

percent_value: 18 part_value: 2360
X% of Y: 0. Part is what% of Base: inf%. Original Before Percent: 13,111.1111

With Percentage = 18 and Part / Result = 2,360 as the stated inputs, the result is X% of Y = 0, Part is what% of Base = inf% and Original Before Percent = 13,111.1111. Each value corresponds to the declared output fields.

Example 4: Commission on Sales

Inputs

percent_value: 7.5 base_value: 850000
X% of Y: 63,750. Part is what% of Base: 0%. Original Before Percent: 0

With Percentage = 7.5 and Base Number = 850,000 as the stated inputs, the result is X% of Y = 63,750, Part is what% of Base = 0% and Original Before Percent = 0. Each value corresponds to the declared output fields.

Common Use Cases

  • Calculate a discount on a purchase price
  • Find what percentage a score represents
  • Determine the original price before a sale