To calculate a percentage with a calculator, you'll need to know the original number and the percentage you want to find. For example, let's say you want to calculate 25% of 100 - simply enter 100, then press the multiply button, and finally enter 0.25 (that's 25% in decimal form). Voilà! You'll get your answer in no time.
Now, I know some of you might be thinking, "But I'm not a math whiz, I'll never get this right!" Fear not, friends, because calculating percentages with a calculator is actually really simple. Just remember to convert that percentage to a decimal by dividing by 100, and you're golden!
Let's try another example: if you're trying to calculate a 10% discount on a $50 item, you'd enter 50, then multiply by 0.10 (that's 10% in decimal form). Then, subtract that result from the original price, and you'll get the discounted price. Easy peasy, right?