Loss of Profits which contractor would have earned

Loss of profit which the contractor would otherwise have earned but for the delay or disrupion .
This is based on the argument that a contractor has lost the opportunity to earn addtional profit as a result of being delayed on another project . Perhaps he had to turn down a lucrative contract because this project continued to absorb his staff and labour .
If such losses have really been incurred , then very persuasive evidence will be required before any judge or arbitrator will consider making an award .