I have two following questions about microeconomic. I hope you'll answer it. Thank you!

1. Mr. Lee Bhog Man demands twelve (12) trays of eggs when the price was still at P80 per dozen. When the price increases to P250 per tray, the orders are reduced to twenty (20) dozens. Find elasticity and its coefficient
2. Ms. Kaye Moh Cath orders 32 pieces of economics books when the price was still at P320 each. Suddenly, the price hikes by P50 but since students badly need it, the orders remain unchanged. Compute elasticity and find its coefficient

NOTE: I WILL NOT COPYING YOUR WORK/ANSWER I WILL USE IT FOR MY GUIDANCE, WHEN YOU ANSWERED IT I SWEAR I WILL RATE YOU AS HELPFUL, THANK YOU SO MUCH AND GOD BLESS!