"The (US) offer included a reduction of tariffs on steel from 50% to 25%, a reduction on Canadian autos from 25% to 15%, a removal of the 10% tariff on Canadian lumber and cooperation on numerous other measures, representing the best deal offered in comparison to any other country which relies on heavily US markets.  Carney abruptly ordered negotiators to walk away, claiming the deal was "not good enough", and declared further retaliation against the US. Around 78% of all Canadian exports rely on US consumer markets. These goods and resources only make up around 13% of all US imports. Meanwhile, around 15% of US exports go to Canada. In the US, exports make up 11% of total GDP.  In Canada, exports make up 33% of GDP."