Being more than is needed, desired, or appropriate
An amount or quantity beyond what is needed, desired, or appropriate
The surplus for the year amounted to 65,000,000 lire.
In the lean years, harvests are small and farmers sometimes don't even produce enough to have surplus to sell.
Surplus plants and cuttings are generally distributed without charge to educational or charitable institutions, and to the poor.
Markets are established in the city where peasants can bring their surplus supplies and the products of the soil.
You might argue that since there is now a surplus of labor in Chad's neighborhood, the price of labor is lowered and Chad will only find work paying $9.75 an hour.