Answer: 4.38%
Step-by-step explanation:
Use the Quantity Theory of Money to find the growth rat:
MV = PY
ΔMoney supply + ΔVelocity = ΔPrice level + ΔEconomic output or GDP
Velocity is stable so is 0.
ΔMoney supply + 0 = 2.50% + 1.88%
ΔMoney supply = 4.38%