Update Volforce calculation

[ztren]

Minor Volforce calculation correction for SDVX > Profiles > Detail > Basic Data

游戏里单曲vf是单曲vf*2再截取到小数点后一位，总vf是前50vf加起来除以100

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[dannylin0711]

Thanks for the note, I would fix the calculation with better equation.
I've noticed this since early stage development with current webui but the issue seems only on minor people, so I didn't update it in time.

[dannylin0711]

While fixing the VF calculation, radar calculation is also in development. But the equation on most sites are incorrect, and can't lead to correct calculation as in game and may need more time.

[dannylin0711]

And sorry for the late reply, I was busy for the past few months.