How & where to use % sign

How & where to use % sign. I saw it in one of your video regarding to avoid re entry.

% is nothing but modulus in Maths term.

If you want to find a remainder of a value when divided by a certain number, you can use this.

For example, if you want to check a condition every 5min, which would be at 0th, 5th, 10th minute and so on.

You can create condition using modulus with 5 and remainder should be 0.

modulus

Thank you Vinayak… your comment is usefull for me…