The resolution or ordinance calling the special election shall specify the following:

1. (a) The purpose for which the indebtedness is proposed to be incurred.
2. (b) The estimated cost of the things proposed.
3. (c) That bonds of the city will issue in the amount of the estimated cost.
4. (d) The number and character of the bonds.
5. (e) The rate of interest to be paid.
6. (f) The amount of the tax levy for each year during the outstanding of the bonds to be made for their payment.