Calculation of the Price Difference Under a Revised Work Programme

The price difference under a revised work programme is calculated in situations such as an extension of time, an increase or reduction in the scope of work, a change in appropriation instalments, work carried out with the authority's permission during a period technically unsuitable for work, or the establishment of a new price. It is calculated for the work items in the revised work programme according to the published price difference principles for the nature of the work. The distribution of appropriations for the period before the extension of time may not be changed.