Return calculationsFor the investment shown in the following table, calculate the rate of return earned over the unspecified time period.(Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet.) Cash flow during period $-800 Beginning-of- period value $1100 End-of- period value $100 The rate of return on the investment is ____

(Round to two decimal places. If there is a loss, enter as a negative percentage.)