Question

HELPPPP PLEASEEEEE HOW DO I SET THIS UP?? AND WHATS THE ANSWER TO THE FIRST ONE???? PLEASE ITS DUE IN 5 MINUTES

Answer 1

80% increase

Explanation:

The new value is 90. The old value is 50

(90-50)/ 50

40/50

Multiply by 2 to get over 100

80/100

80% increase