How to calculate the daily rent amount

Weekly:  divide by 7 (eg $180pw ÷ 7 = $25.7142857143); 

Fortnightly: divide by 14 (eg $320pfn ÷ 14 = $22.8571428571);

4 Weekly: divide by 28 (eg $900p4w ÷ 28 = $32.1428571429);

Monthly:  multiply by 12 and divide by 365 (eg $800pcm x 12 ¸ 365 = $26.301369863);

When working out the Balance to Vacate, in order to get the exact cent don't round the figures off (to two decimal places) until the end total has been calculated.