Answer:
The jacket increase by 25% in price.
Explanation:
Given that:
Sale price of jacket = $210
New cost of jacket = $262.50
Change = New cost - Sale price
Change = 262.50 - 210 = $52.50
Percent increase =

Percent increase =

Percent increase = 0.25 * 100
Percent increase = 25%
Hence,
The jacket increase by 25% in price.