Answer:
25% change
Step-by-step explanation:
Step 1: Make an expression
[tex]15.60 * x = 11.70[/tex]
[tex]15.6x = 11.7[/tex]
Step 2: Divide both sides by 15.6
[tex]15.6x / 15.6 = 11.7 / 15.6[/tex]
[tex]x = 0.75[/tex]
Step 3: Convert into a percentage
x = 0.75 * 100
x = 75%
100 - 75
25% change
Answer: 25% change
