There are two figures missing from the question that were in the original exam question.
Against sales revenue is should say that selling prices fall by 10%, and against raw materials it should say that suppliers lowered their prices by 5%.
If you compare the actual this year with the actual last year, then sales volume fell by the same % os the entire market. So not poor performance.
The selling price per unit fell by less than 10%, so not poor performance.
The material cost per unit increased even though suppliers lowered their price, which is poor performance.