Label - display digit below zero?

I am using a label to display a calculated % and it displays something like 0.0029 when the value is very small. I want to limit the number of digits below zero like 0.1 to 99.9. Please help!

format as decimal

Formats a number as a decimal with a given number of places after the decimal point. The number of places must be a non-negative integer. The result is produced by rounding the number (if there were too many places) or by adding zeros on the right (if there were too few).

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Thanks for the reply. I will study and see. Thanks again.