Question

Please tell me the answer of the question with step-by-step explanantion. Do not spam.​

Answer 1

Step-by-step explanation:

explaining the answer I'm not spamming now see

4500÷100×10= 450

4500÷100×12=540

= 990

gain precent= 22% is the answer

Answer 2

Step-by-step explanation:

$\frac{4500}{100} \times 10 \\ \\ \frac{4500}{100} \times 12 \\ = 540 \\ = 990 \\ \\ gain\% = 22\%$