As inflation climbs in the U.S., rising food and energy costs have pushed the nation’s most popular price index to its highest level in four decades. WSJ’s Gwynn Guilford explains how the consumer-price index works and what it can tell you about inflation.

Illustration: Jacob Reynolds

More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Visit the WSJ Video Center: https://wsj.com/video

On Facebook:   / videos  
On Twitter:   / wsj  
On Snapchat: https://on.wsj.com/2ratjSM

#CPI #Inflation #WSJ