9) Ivy paid P880.00 for her purchased groceries. Looking at her Official Receipt, she found out that there was a discount of P39.60. Compute for the percent of discount.
10.) Sheila is engaged in an online business. She started with an investment of P10 000.00. Due to the COVID-19 pandemic, her business becomes in demand, In March, she gained 5% profit and added to her investment. She continuously adds her profit to her investment thereafter and gains 10%, 25%, and 40% in the succeeding months until June 2020. How much is her total investment by the end of June?​