Source: U.S. Department of Labor
Release: Minimum Wage Rate by State
State minimum wage does not apply to employees of retail or service businesses with gross annual sales or receipts below a certain point. State minimum wage is changed annually based on changes in the CPI and a cost of living formula.
For more information, visit https://www.dol.gov/whd/state/stateMinWageHis.htm
U.S. Department of Labor, State Minimum Wage Rate for Missouri [STTMINWGMO], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/STTMINWGMO, March 18, 2018.