In an agricultural machine, a route creator creates a planned traveling route for a traveling vehicle body in a work area where a working device works using a material. An area setter sets, outside the work area, a replenishment area to replenish the material. A charge amount acquirer acquires a charge amount of the material. A remaining amount calculator calculates a remaining amount of the material based on the charge amount acquired and a material consumption of the material consumed by the work. A position setter sets a replenishment position to replenish the material in the replenishment area set by the area setter based on the remaining amount calculated by the remaining amount calculator. A position changer changes the replenishment position when a change reception switch receives change of the replenishment position. A display displays the changed replenishment position.