【求助】person-days什么意思

Seems for the estimation of cost for the allowance.

2 × 3 = 6
10 × 2 = 20

if the allowance per person per day is $1000, the cost will be 6 × $1000 = $6,000 for the staff and 20 × $1000 = $20,000 for the manager.

Are you going overseas for training?

person-day就是人天数，人数与天数的乘积，认证公司都用这个单位来作审核工作量的一个指标，例如派4个审核员来审核1天就是4人•天，2个审核员审2天也是4人•天。其他一些咨询公司、培训公司、旅游公司都用到这个指标。

人天数或人日数=一个人待6天和2个人都待三天的人日数一样，6个