There are several ways you can round this. If looking at the least value, then 25.69 is an extreme, the other being 26. But since this is greatest, it would be 26, because .691 can be rounded into .69, then .7, and finally a whole number, because 7 is greater than 5. .7 is rounded to 1, so you would do 25+1, which is 26.
