Here’s the trap: You see a cell that says “0.2” and you think, “Great, twenty percent!” Wrong. That cell is just a fraction. You have to tell the program, “Hey, this is a percentage, not a decimal!”
It’s like putting a sweater on a dog. The dog (the number) is the same, but the outfit (the format) makes it clear what it is. So always use the “Format as Percent” button in the toolbar. It’s the little % sign. It turns your sad “0.2” into a proud “20%.” Your data will thank you.
How To Calculate A Percentage In Google Sheets | Detroit Chinatown
Increase and Decrease: The “Uh Oh” Scenarios
You got a raise. You want to know the percentage increase. Or your rent went up, and you need to calculate the financial damage. The formula is (New - Old) / Old.
It sounds scary, but it’s just “How much bigger is the new thing compared to the old thing?” If your salary went from $50k to $55k, you type =(55000-50000)/50000. The result? A sweet 10% bump. Or a 10% bump in rent, which is less sweet. Either way, Sheets tells you the truth with zero drama.
