Answer:
$460,000 decrease
Explanation:
The computation of TLC's estimated change in revenues next year is shown below:-
TLC's estimated change in revenues next year = ((Consumer loan × Interest rate) + (Home equity loan × Interest rate) + (Corporate securities × Interest rate)) - ((Increased consumer loan × Decrease rate) + (Increase equity loan × Interest rate) + (Corporate securities × (1 - decreased percentage) × average interest rate))
= (($35.0 million × 0.12) + ($30.0 million × 0.O8) + ($5.0 million × 0.06)) - (($40.0 million × 0.10) +($32.0 million × 0.065) + (5 million × (1 - 20%)  × 0.09))
=$6,900,000 - $6,440,000
= $460,000 decrease
Therefore for computing the TLC's estimated change in revenues next year we simply applied the above formula.