In questioning participated staff of subsidiary enterprise of audit company PricewaterhouseCoopers (PwC), which provides audit, tax and consulting services to companies operating in various industries in order to strengthen public confidence in the business sector and create greater value for clients and their partners. Questioning was provided on May and June 2009. It was got 50 suitably fulfilled questionnaires. For evaluation of impactability of each control procedure respondents used five-point scale (point 1 shows lowermost and 5 – uppermost level of impactability). The efficiency of each control procedure was evaluated positively or negatively answering question – are benefits of procedure's use greater than its costs. Trying to evaluate compliance of each control procedure with expectations of top-managers, respondents had to choose positive or negative answers to four questions:
• Is this procedure relevance?
• Is it possible to provide this procedure in time?
• Is this procedure enough precise?
• Is this procedure enough overall?