Case 3 Information on Rommel Manufacturing Corp's direct material cost is as follows: Standard unit price P4.50 Actual quantity purchased 2,000 Standard quantity allowed for actual production 1,800 P480 Material purchase price variance - favorable 1. What was the actual purchase price per unit? 2. If materials usage variance is P225 favorable, the actual quantity used 3. If materials usage variance is P405 unfavorable, actual quantity used