Sye Chase started and operated a small family architectural firm in Year $1.$ The firm was affected by two events: $(1)$ Chase

provided $$19,500$ of services on account, and $(2)$ he purchased $$6,800$ of supplies on account. There were $$850$ of

supplies on hand as of December $31,$ Year $1.$

d$.$ Explain why the amounts of net income and net cash flow from operating activities differ.