Why are oceans salty but not lakes? As water flows over land it picks up minute amounts of salts from the soil and rocks. This water does not pick up enough to be noticeable, and as it flows into lakes, it also â¦ flows out without appreciable evaporation. Only when the water reaches the end of its flow does it evaporate leaving the salt behind. As this continues throughout the mellennia, the salt concentration increases.
However, the average competitive rate for outsourcing bookkeeping and accounting services is right around $15-$20 per hour;, these services will not need 40 hours a week to service your business.
Commercial Cleaning Service Average Costs. Some office cleaning services charge based upon the square footage of your office. Rates usually range from $.05 per square foot to more than $.20 per square foot. Janitorial services in major metropolitan areas charge pay more than those in rural areas or suburbs.Often, the price per square feet is less for larger offices. 1  A 50,000 square foot office might cost $.05 to $.10 per square foot to clean. 2  A 10,000 square foot office would likely cost $.10 to $.15.f you have a small office with just a handful of employees, light cleaning such as vacuuming and emptying the trash can run as little as $100 to $200 per month. However, the average price for small offices is generally in the neighborhood of $500 to $800 per month.