"By 2007, the area affected by the infestation covered almost 13 million hectares. The amount of standing dead wood was estimated at about 530 million cubic meters in 2007. This represented about 40% of the merchantable pine and 12% of the province's total merchantable timber."

What is the total amount of the merchantable pine in cubic metres? (2 marks)

What amount (in cubic metres) has not been infected? (2 marks) ** Do I need to find out what number 100% would represent? Or am I over complicating it. Please, step-by-step break down. I need to understand it fully.