Yes, you can attempt the mock tests in a simulated exam environment with a virtual percentage calculator for percentage calculations.

Simulated Exam Environment:
To create a simulated exam environment, follow these steps:
- Find a quiet and comfortable place where you can concentrate without distractions.
- Set a timer for the duration of the mock test to mimic real exam conditions.
- Gather all the necessary materials such as a pen, paper, and any other resources allowed during the actual exam.
- Make sure your computer or device is functioning properly and has a stable internet connection.
- Close any unnecessary applications or tabs to minimize distractions.
- Put away your phone or any other devices that may interrupt your focus during the test.
- Create a realistic exam atmosphere by maintaining silence and avoiding any external disturbances.

Using a Virtual Percentage Calculator:
A virtual percentage calculator can be utilized to perform percentage calculations during the mock tests. Here's how you can use it effectively:
- Open a web browser and search for a reliable virtual percentage calculator.
- Enter the values you need to calculate the percentage, such as the base value and the percentage to be calculated.
- Click on the "Calculate" button to obtain the result.
- Some virtual percentage calculators may also provide additional features like calculating percentage increase or decrease, finding the percentage of a number, or solving other related mathematical problems.
- Familiarize yourself with the virtual calculator's interface and functionalities before the mock test to ensure smooth usage during the exam.
- Practice using the virtual percentage calculator beforehand to become proficient in its operation.
- During the mock test, if you encounter any percentage calculation questions, switch to the virtual percentage calculator and input the necessary values to obtain the accurate result.
- Make sure to double-check your calculations to avoid any errors caused by incorrect inputs or calculations.

Benefits of Using a Virtual Percentage Calculator:
- Speed and Accuracy: A virtual percentage calculator allows you to perform calculations quickly and accurately, saving time during the exam.
- Convenience: It eliminates the need for manual calculations, reducing the chances of errors and providing convenience in complex percentage calculations.
- Focus on Problem Solving: By using a virtual percentage calculator, you can focus more on understanding and solving the problem rather than spending excessive time on calculations.
- Realistic Exam Experience: Utilizing a virtual percentage calculator in a simulated exam environment replicates the conditions of the actual exam, enhancing your preparedness and confidence.

In conclusion, you can definitely use a virtual percentage calculator in a simulated exam environment to attempt mock tests. It provides you with the convenience, speed, and accuracy required for percentage calculations, allowing you to focus more on problem-solving and replicating a realistic exam experience.