Last week, New World was selling 100g blocks for $5.99. Today, they cost $6.99. Photo / Duncan BrownLast week, New World was selling 100g blocks for $5.99. Today, they cost $6.99. Photo / Duncan Brown

Hike driven by a jump in ingredient and operating costs

Chocolate blocks move down the production line inside Whittaker's Porirua factory. Photo / SuppliedChocolate blocks move down the production line inside Whittaker’s Porirua factory. Photo / Supplied