Requirements:

1) Fix the Value at Risk Calculation - Watch: https://drive.google.com/file/d/1rNIY4jJfuGm__Uw_d0FuESnSwHCf9C16/view

2) Show the Portfolio Standard Deviation - Watch: https://drive.google.com/file/d/1MPSO2odvPzxTEyWJS9gwuViIEvGFrgcX/view?usp=share_link

For more clarity I would watch this video:https://www.youtube.com/watch?v=Mn8HR4o9wJE