A household (HH) savings-account spreadsheet shows the following entries:

Date

Additions

Withdrawals

Value

1/1/10

148,000

1/3/10

2,500

3/20/10

4,000

7/5/10

1,500

12/2/10

13,460

3/10/11

23,000

4/7/11

3,000

5/3/11

198,000

Calculate the dollar-weighted average return on the HH savings account between the first and final dates.(Round your answer to 2 decimal places. Omit the "%" sign in your response.)

Dollar-weighted average

%