How to add an "if" condition to a formula in Google Sheets?

Question

Google Sheets

We divide from one cell value by another, multiply by 100%, and the result appears in the third. But if there is such a value as 0, which cannot be divided by, then how to write it down so that the result is displayed, just the value from the cell that must supposedly be divided by this zero?

Answer 1

Use the formula =IFERROR()

Answer 2

=ЕСЛИ(A2=0;"Нельзя делить на ноль!";A1/A2)