ECR extra questions

System

Hi<BR><BR>Has anyone done the extra questions from the Premier Training for the ECR unit? There is one on accounting techniques and I am not sure what it is asking for:<BR><BR>Use of standard units of imputs and outputs<BR>Give one reason why standard measures of input and output are useful.<BR><BR>It is after some VAT questions so it may be to do with VAT ratings of input and output to create an industry standard but there are also performance indicators from inouts and outputs so I am very confused about how to answer it properly.<BR><BR>Any help would be good thanks.<BR><BR>Torix