The phrase "expenditure levels" refers to the amount of money or resources that are spent or used in a particular situation or period of time. Full definition
You need these energy sources at varying times of your day, dependent on your energy expenditure level. (get-gorgeous.com)
We will then use those estimated expenditure levels in conjunction with the input - output model used to estimate indirect employment to estimate monthly direct employment for transit projects. (transportation.gov)
We do know that the public is no better at estimating actual expenditure levels than previously. (educationnext.org)