Percentage Calculator
Calculate what X% of Y is, what percentage X is of Y, percentage increase or decrease between two values, and percentage difference.
Using Percentage Calculator as a Guest Student
Save your student profile to track computations, past questions & GPA targets.
Enter both values to see the result.
How It Works
Each mode uses a standard percentage formula (shown on the result) — for example, percentage increase is ((new - old) / old) × 100.
MyDelsu is an independent student platform and is not affiliated with DELSU administration. This tool is provided for guidance only — always verify results against your official transcript, result slip, or academic regulations.
Last updated: 2026-08-25
Frequently Asked Questions
Why is my percentage decrease shown as a positive number?+
Percentage decrease is shown as a positive magnitude (e.g. "20% decrease") rather than a negative number, matching how it's usually reported.