Percent-RS

简单的百分比实现，可以添加、减去、乘以和除以。

使用方法

use percent_rs::Percentage;

fn main() {
    let percent = Percentage::from(50);
    let percent_decimal = Percentage::from_decimal(50.5);
    println!("{}", percent); // 50%
    println!("{}", percent_decimal); // 55.5%
}