HELP, i’m confused and don’t know how to do this

The product of two negative rational numbers is always zero sometimes zero never zero

Write the rational number in lowest terms 99/-15

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%