Percentage Calculator

X% of Y

Like "what's 20% of $150?" - super useful for discounts and tips!

What percentage?

Of what number?

Your Answer

Enter the numbers to see your result

Real-world example:

You're shopping and see a $80 jacket with 25% off. What's the discount? 25% of 80 = $20 off, so you pay $60!

What % is X of Y?

Perfect for test scores, like "I got 45 out of 50, what percentage is that?"

The part (what you got)

The whole (total possible)

Your Score

Enter your scores to see the percentage

Example:

You answered 42 questions correctly out of 50 total. That's 84% - nice job!

Percentage Change

Great for tracking progress - salary raises, weight loss, stock prices!

Starting value (before)

New value (after)

The Change

Enter the before and after values

Examples:

• Your salary went from $50,000 to $55,000 = +10% raise! 🎉
• Gas prices dropped from $4.00 to $3.60 = -10% decrease

Tip Calculator

Just enter your bill and pick a tip percentage - we'll do the rest

Your bill amount

Tip percentage

15%

18%

20%

22%

25%

What You'll Pay

Enter your bill to calculate the tip

Tip guide:

• 15%: Basic service, nothing special
• 18-20%: Good service, you're satisfied
• 22-25%: Great service, you're impressed

Percentage Difference

When you want to see how different two things are (like prices at different stores)

First number

Second number

The Difference

Enter both numbers to compare them

When to use this:

Perfect when comparing two similar things - like prices at different stores, test scores between friends, or anything where neither number is the "starting point."