Percentage Calculator
Enter p as a percent (e.g., 15 = 15%). All fields sync live.
Mode 1 — How much is p% of x?
Example:
15% of 330 = 49.5. Relations: y = x × (p/100), p = 100 × y / x, x = 100 × y / p.
Mode 2 — x is what percent of y?
Formula:
p = 100 × x / y (when y ≠ 0).
Mode 3 — x is p% of which number?
Example:
30 is 20% of 150. Formula: y = 100 × x / p (when p ≠ 0).
Actions
Step-by-step derivation
Mode 1
Provide any two of p, x, y.
Mode 2
Provide any two of x, y, p.
Mode 3
Provide any two of x, p, y.
Reference
y = x × (p/100),p = 100 × x / y,y = 100 × x / p- Here, user inputs
pas a percentage number:20means20%.
Notes: If
y = 0, p = 100×x/y is undefined. If p = 0, y = 100×x/p is undefined.