JUNE 2010 , Q 1 (iii)

. I JUST HAD A SIMPLE QUESTION FROM THE JUNE 2010 QUESTION 1, PART (iii) , THE SENSITIVITY ANALYSIS QUESTION . IM FINDING IT REALLY DIFFICULT TO UNDERSTAND HOW THEY’VE ANSWERED IT IN THE MARKING SCHEME , I MEAN ITS MAKING NO SENSE TO ME. IVE LEARNT SENSITIVITY ANALYSIS IN F9 AND IN P4 AND I KNOW HOW IT WORKS AND UNDERSTAND IT , BUT FOR SOME REASON THE MARKING SCHEME IS KINDA DIFFERENT TO WHAT I HAD IN MIND . THE WAY WE MEASURE A SENSITIVITY OF A PROJECTS NPV IS SIMPLY BY DIVIDING THE NPV BY THE THING THAT ITS SENSITIVE AGAINST , EG: COST , PRICE ETC .. I JUST DONT SEEM TO GET HOW THEYVE DONE AND IM COMPLETELY STRESSED UP , I’D REALLY APPRECIATE ANY HELP I COULD GET FROM YOU..
THANKS.