Question $20(1,5$ points$)$

The stock price of Deezer at the end of each of the last seven months is recorded in the following table. Determine the volatility of the Deezer's stock return over the last six months $($supply the answer in $\%,$ rounded to the second decimal$).$

$\backslash$table$[[\frac{31}{03}\frac{?}{2023},1,36],[\frac{28}{02}\frac{?}{2023},2,58],[\frac{31}{01}\frac{?}{2023},2,29],[\frac{30}{12}\frac{?}{2022},2,92],[\frac{30}{11}\frac{?}{2022},3,42],[\frac{31}{10}\frac{?}{2022},3,35],[\frac{30}{09}\frac{?}{2022},3,75]]$