Ann Arbor Division of the Wisconsin Company has the following statistics for its most recent operations: Assets available for use (Market Value) $3,600,000 Assets available for use (Book Value) $2,000,000 Ann Arbor Division's return on investment 25% Ann Arbor Division's residual income 200,000 Return on investment (entire Wisconsin Company) 20% Refer to Wisconsin Company. What is the target rate of return in Wisconsin Company