Chipotle says California's minimum wage pushed menu prices up nearly 7%

California's $20 wage for fast food workers is just a few weeks old, and the effects on workers and customers are beginning to emerge.

At Chipotle, the law drove a 20% increase in wages for its restaurant staff in the Golden State, the company said during its earnings call on Wednesday.

To offset that cost, menu prices notched up about 6% to 7% for customers in California, CEO Brian Niccol said.