Answer:
increased by 8.00%
Explanation:
The percentage change in Sam's annual earnings is given by the difference from this year's to last year's earnings, divided by last year's earnings and multiplied by 100%:
[tex]Change= \frac{(25,000+2,000)-25,000}{25,000}*100\%\\\\Change= 0.08*100\% = 8.00\%[/tex]
His annual earnings increased by 8.00%.