fix: siunitx percent

skinstression/sections/results.tex

@@ -384,7 +384,7 @@ \subsection{Training}
 This model will be used during testing.
 
 To verify performance of training, the stress-strain curves of a random training batch are plotted with the raw data in \cref{fig:skinstression-train-logistic-curves}.
-For this batch, $\overline{R^2} = \num{0.75 \pm 0.28}$ with a \qty{95}{\per} confidence interval.
+For this batch, $\overline{R^2} = \num{0.75 \pm 0.28}$ with a \qty{95}{\percent} confidence interval.
 
 
 \begin{figure*}