Traffic entering Manhattan below 60th Street dropped by 7.5% in the first week after the start of a controversial $9 toll on driving in that area.

Days into the new charges, some restaurant owners say suppliers are raising prices. Others are giving customer discounts, and many fear the fallout for workers.

The introduction of a $9 congestion fee has resulted in faster speeds on some of the city’s famously snarled streets and fewer commuters on the bridges and tunnels. “The traffic is absolutely less, even during rush hour,