HealthTap: Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Greer on how long after starting antibiotics for strep throat are you contagious: You are okay to return to daycare or school after 24 hours from completing first dose of medication. That being said, I don't think I'd kiss someone or share their cup until on meds for 3 days! Make sure to finish all your meds, though. HealthTap: Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Greer on how long after starting antibiotics for strep throat are you contagious: You are okay to return to daycare or school after 24 hours from completing first dose of medication.
1. Know what a percentage is. A percentage is a way to express a number as a part of a whole. To calculate a percentage, we look at the whole as equal to 100%.For example, say you have 10 apples (=100%). If you eat 2 apples, then you have eaten 2/10 Ã 100% = 20% of your apples and you are left with 80% of your original apples.. Know what a percentage is. A percentage is a way to express a number as a part of a whole. To calculate a percentage, we look at the whole as equal to 100%.
Move the decimal one place to the left to find 10% instantly. This is the easiest way to get rough percentages without a calculator. To do it, simply slide the decimal over one place to the left. So 10% of $23.50 is $2.35.Remember, there is always a decimal place at the end of a number, so 25 could also be thought of as 25.00. A percentage is a number of parts out of 100. 2  One way to think of a percentage is as a the numerator of a fraction that has a denominator of 100. 3  Converting to percentages is the same as finding an equivalent fraction with a denominator of 100 and then reporting only the numerator with a percent sign (%) after it.