The purpose of this survey is to certify the commercial practice in which in the leasing contracts for pump trucks, the price is determined based on a minimum number of cubic meters of concrete, regardless of whether the amount actually pumped is less, in order to ensure a minimum operating profitability of the equipment, considering the direct and indirect costs of the operation. The information will be for statistical purposes and under the rules of data protection. Citizens may consult the personal data protection policy of the Bogota Chamber of Commerce on the web page https://www.ccb.org.co/proteccion-de-datos-personales. The measurement will be carried out by BRANDSTRAT BIC SAS, a consulting and research firm dedicated to the measurement and elaboration of economic, social and business studies and research. For more information, please contact John Wilson Buitrago Acosta at john.buitrago@ccb.org.co or Cristian Valencia at cristian@brandstrat.co. Your participation is important for the Bogota Chamber of Commerce.