A bank has $200 reserves, $800 loans, $400 securities, $1200 deposits, and $100 debt.

a) Calculate the bank's capital.
b) Calculate the bank's leverage ratio.
c) Suppose there is a stock market boom, so that the bank's assets increase by 2 percent. What is the percentage change in the bank's capital? What is the change in the bank's capital in dollars?
d) Suppose that, instead of stock market boom, some borrowers default on their debt so that the bank's assets decrease by 2 percent. How much is now the bank's capital?

My answers:
a.) Capital = assets - liabilities = $1400-$1300 = $100

b.) leverage ratio= assets/debt = 1400/100 = 14

I dont understand c and d, please help super urgent