I need help with part of this question! I solved the equilibrium price, but I can't figure out the equilibrium quantity.

Suppose that, prior to the passage of the Truth in Lending Simplication Act and Regulation Z, the demand for consumer loans was given by dere-TILSA = 8 -80P (in billions of dollars) and the supply of consumer loans by credit unions and other lending institutions was QSpre-TILSA = 4 + SOP (in billions of dollars). The TILSA now requires lenders to provide consumers with complete information about the rights and responsibilities of entering into a lending relationship with the institution, and as a result, the demand for loans increased to deost-TILSA = 22 -80P (in billions of dollars). However, the TILSA also imposed "compliance costs" on lending institutions, and this reduced the supply of consumer loans to QSpost-TILSA = 2 + 80F (in billions of dollars). Based on this information, compare the equilibrium price and quantity of consumer loans before and after the Truth in Lending Simplication Act.{Note.'Q is measured in billions of dollars and P is the interest rate). Instruction: Enter your responses for the equ'librium price in percentage terms. and round all responses to one decimal place. Equilibrium price (interest rate) before TILSA: 2.5 percent Equilibrium quantity (in billions of dollars) before TILSA: $ billion Equilibrium price (interest rate) after TILSA: 12.5 percent Equilibrium quantity (in billions of dollars) after TILSA: $ billion