you can use arrayformula:
=ARRAYFORMULA(IF(B2:B<>"", IF((B2:B > 649)*(B2:B < 850), 125, B2:B* 0.16), ))
Answer from player0 on Stack Overflowusing Multiple IFs on Google sheets - Stack Overflow
How do I make an IF ">40"MULTIPLY formula?
Multiplying based off if another cell has text... - Google Docs Editors Community
multiplying values using IF < and >= functions - Google Docs Editors Community
How Do I Multiply Multiple Cells in Google Sheets?
The best way to multiply multiple cells in your spreadsheets is to use the formula -"=A1*A2" - and add as many cells as you need. Using the array formula, you can multiply a large amount of data and create a new column with values. Here's how to do it:
• Open Google Sheets.
• If you have columns A and B filled with information, you can choose column C to write the formula.
• In C1, you can write "=ARRAYFORMULA ( * )."
• If your columns have a header, you should use "=ARRAYFORMULA (A2: AB2:B)."
• If you want to select the range of fields to display the result, your formula should look like this: "=ARRAYFORMULA (A2:A20B2:B20)."
How Do I Multiply Two Columns In Google Sheets?
Should you want two columns to multiply in Google Sheets, here's what you need to do:
• Open Google Sheets.
• If you have numbers in column A and column B, you'll need to write a formula: "=ARRAYFROMULA (A1:A12*B1:B12)."
• It's best to write this formula in cell C1 to fill the rest of the column's cells with values.
Using array formulas, you can't delete or edit a part of the result, only the whole array.
How Do You Multiply on a Spreadsheet?
There's more than one way to multiply numbers in Google Sheets. You can use several ways to get to the same solution:
• Using a formula with numbers: "=MULTIPLY (1,2)"
• Using a formula with cell names: "=MULTIPLY (A1, B2)"
• Using a multiply operator with numbers: "=23"
• Using a multiply operation with cell names: "=B1B2"
Add the following formula to the cell C1, and fill down as necessary
=IF(A1="keyword",B1*2,B1)
References
IF - Google Editors Help
If you need to do this for multiple values across the board down the entire column for automation purposes, you can also use the following formula:
=IF(
OR(A:A = "Keyword 1", A:A = "Keyword 2"),
B:B*2,
IF(A:A = "Keyword 3",
B*B*3,
))
=ARRAYFORMULA(PRODUCT(IF(AG15,">40",AH15,"31.5")))
=ARRAYFORMULA(IF(AG15,">40"(PRODUCT(AH15, 31.5))))
=IF ( AG15, ">40" MULTIPLY(AH15,31.5))
Long story short, those are a few different examples of what I've tried already. Basically what I want to do is calculate the amount of overtime pay my employees earn. So when a cell in column AG is greater than 40, it tells me in column AH how much of that is overtime. Then a another cell needs to calculate the wage paid for that overtime which is (obviously) a different rate than the normal rate that is calculated already as well.
https://imgur.com/a/pbMHvIm
Link to screenshot for reference. Sorry I'm not sure how to post the picture directly. Any help would be appreciated.