That I could of 100 percent signed something today.

我今天本可以有100%的机会签署协议。

And let me conclude that number 37 is a percent sign.

让我得出结论，37是个百分号。

And of course, you can always use the percent sign instead of writing out the words.

当然，您始终可以使用百分号而不是写出单词。