Answer:
25%
Step-by-step explanation:
Use formula
[tex]\text{Percent increase}=\dfrac{\text{New price - Old price}}{\text{Old price}}\cdot 100\%[/tex]
Old price = $800
New value = $1,000
Hence, the percent increase is
[tex]\dfrac{1,000-800}{800}\cdot 100\%=\dfrac{200}{800}\cdot 100\%=\dfrac{1}{4}\cdot 100\%=25\%[/tex]
