EVT - Dowd 7 Example 3.5

In example 3.5 Dowd uses percentages and just plugs them into the formula (e.g. 2 instead of 0.02). This does not look even remotely right to me - in particular the exponent -0.3. If I use the actual numbers, I end up with 1.52% at 99.5% confidence, so a huge divergence. Any views on that?

PS: Took me a while to find out that there was a typo in formula 3.5a - it's chi index n, not chi * n. This book isn't good for my nerves...
 
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