Calculate percentages for exams, fees, discounts, and more
You ever stare at a “25% off” sign and just… freeze? Yeah, me too. That awkward moment where you’re doing mental gymnastics in the middle of a store? That’s exactly why I built this calculator. Because honestly, who has time for percentage panic when there’s shopping to do?
Look, I’m not gonna lie – I barely passed algebra. But this? This is stupid simple:
Boom. Done. No scribbling on napkins or whispering “please be right” under your breath. I’ve got your back.
“What’s X% of Y?”
Like when you’re wondering: “Is 20% tip on this $47 dinner actually gonna break me?” (Spoiler: it’s $9.40. You’re welcome.)
“X is what percent of Y?”
Perfect for those “Wait, how bad was that test really?” moments. If you got 15 outta 50 questions right? Yeah… that’s 30%. Maybe hit the books next time.
“How much did this thing change?”
For when your boss says “Sales went from $10k to $15k!” and you need to know if that’s actually impressive (it’s 50% growth – time for a high-five).
Percentages follow you everywhere like that one relative who always shows up unannounced:
• Shopping: Finally understand if “40% off + 15% member discount” is actually a good deal (pro tip: it usually isn’t what you think) • Money Stuff: See through those “0.9% APR” car loan tricks (they’re sneakier than they sound) • School: Convert that 18/20 quiz score to bragging rights (90% – go you!) • Health: Figure out if your 5% body fat is impressive or concerning (depends… are you an athlete or just hungry?) • Work: Sound smart in meetings when everyone’s talking about “quarterly growth percentages”
Okay full disclosure – I actually find this kinda cool. The formulas are:
• X% of Y: (X ÷ 100) × Y
• X is what percent of Y: (X ÷ Y) × 100
• Change percentage: ((New – Old) ÷ Old) × 100
But let’s be real – you’re probably here to avoid math, not dive deeper. That’s why the calculator exists. Do yourself a favor and let it handle the number crunching.
“How do I calculate a tip without looking like an idiot?”
Subtract the dollar amount from what you wish you could afford, then add 20%. Or just use the calculator. Your call.
“What’s the deal with percentage vs percentage points?”
Okay so this is annoying but important: If your phone battery went from 20% to 25%, that’s 5 percentage points more, but actually 25% better battery life. Math is weird sometimes.
“Will this work for my small business?”
Absolutely. Calculate margins, taxes, discounts – all that boring adulting stuff. No judgment if you cry a little while doing it.
“Can I use this on my crusty old phone?”
Yep. Works on anything with a browser – even that iPhone 5 you refuse to upgrade because “they just don’t make ’em like they used to.”
Next time you’re staring at percentages like they’re hieroglyphics, just open this page. No more guessing, no more calculator app fumbling. Just quick answers so you can get back to… well, literally anything else.
Bookmark this now. Future you will thank present you when you’re trying to calculate that restaurant tip after two glasses of wine.
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