If your income # is less than $300,000 a year, but is more than $300,000 when you include your before-tax contributions, the 30% tax rate will apply to the part of your before-tax contributions that take you over the $300,000 threshold.
It will cost $75 to $150 per day to rent a portable toilet. This is the cost for a very short period of use. Now, if you are in the construction business and you need permanent portable toilets on site for months you will see a good break in price. The real cost comes when they need to transport the units to the location and when they need to pick them up and clean them.
Some providers estimate an average price of $175 to $500 per month for one construction porta potty rental, with fluctuations based on delivery, location, features, and service charges. The biggest factor in determining price is the cost of transport and service.