The original salary = $ 3,600
The increased salary will be = $ 3,600 + $ 250 = $ 3,850
The original rent = $ 900
The increased rent will be = $ 900 + $ 250
Since, both rent and salary increased by $ 250.
Now, the percentage of Sammie' salary paid as rent will be calculated as -
Percentage of salary paid as rent = × 100
Percentage of salary paid as rent = × 100
<u>Percentage of salary paid as rent = 29.9%</u>