My Three (3) Major Suggestions to Calculator offered by Code Monkey | Open Source

The Calculator (open source) is a free and open source calculator app for android. It is one of the simplest and easy to use calculators in the Play Store.
This calculator was updated last July 3, 2016 version 4.1.1 on Play Store. It has a total download of 10,000+. I'm loving its simplicity honestly. It is very approachable and handy for users. Take a look:

This is the whole app inside. The left side is the main look of the calculator (simple calculator) while sliding to the green side will result to the right side of the picture. I like its design - simple and pleasing. Of course, the users will just input the number they wanted to calculate.
These three suggestions will make the Calculator (open source) better and more advance:
1.) Summarize the history at the middle left side of the app.

Originally, a user will have to scroll up in order to see the history of his calculations. By putting a "HISTORY" small-transparent box, it will be easier to find the history.
This feature summarizes and provides the whole history of your calculation. This also has the choice to delete the history of the user's activities.
2.) Add a close and open parenthesis ( ) and percent % indicator to the simple calculator mode.

This will make the calculations of the user faster and quicker. For example, if he has to calculate 8 percent, he has to input 8 ÷ 100 first; instead, he will just input the number 8 and tap the percent ( % ) indicator. This is also similar to open and close parenthesis, there are simple calculations and operations that need those one.
The order of the operation signs in as shown should be arranged accordingly. I just showed the ( ) and % symbols to make it more realistic.
3.) Add some important functions in the scientific calculator mode of the Calculator.

The Calculator should be containing the higher functions of mathematics. I am an engineering student, and I do use scientific calculator to the smartphone's default calculator sometimes. Adding these new functions will make the Calculator app more advance.

That's all guys. What do you think about this? Above all, I really like how the Calculator (open source) is built.
Thank you!
Regards,
Posted on Utopian.io - Rewarding Open Source Contributors
Thank you for the contribution. It has been approved.
You can contact us on Discord.
[utopian-moderator]
Thank you @knowledges!
Hey @mikekenlytungal I am @utopian-io. I have just upvoted you!
Achievements
Suggestions
Get Noticed!
Community-Driven Witness!
I am the first and only Steem Community-Driven Witness. Participate on Discord. Lets GROW TOGETHER!
Up-vote this comment to grow my power and help Open Source contributions like this one. Want to chat? Join me on Discord https://discord.gg/Pc8HG9x