Follow the algorithm below. Give the final answer stored in the memory location referenced $(3$ points$).$

Create a box in memory called number$\_1.$

Store a $9$ in number$\_1.$

Create a box in memory called number$\_2.$

Store a $5$ in number$\_2.$

Subtract number$\_2$ from number$\_1$ and place the value in number$\_2.$

What is the final value stored in number$\_2?$