Determine the transmission coefficient for an electron

bobby.pdx
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I have an example problem in my book. I have uploaded an image. The part I can't figure out is how to do the last part of the problem to come up with the transmission coefficient. The book gives me a formula but when I plug in all the numbers from the formula into my calculator I get a completely different answer than the book. The number I get is roughly 0.016 where as the book gets 0.963x10^-38. That is way different than what I'm getting and I'm not sure why. Any help would be awesome.
 

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nevermind. I figured it out
 

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