$2.$ Please help me with my finance homework. QUESTION $2$

Find out Net Interest Income, Net Interest Margin, and GAP? much for each$)?$ Why?

if Interest rate for assets increases by $1$ percent and spread decrease by $1$ percent, what happens to net interest income and GAP? $($decrease or increase by how much for each$)$ Why? GAP? $($decrees or increase by how much for each$)$ Why?I need all the steps to understand it$,$ please share all the steps.