Assignment task: From 2005 to 2018, the annual investment in renewable energy sources in the United States increased from 5714 billion to 546.5 billion. Calculate the percent change in renewable energy investment in the US from 2005 to 2018.
Experts estimate that for the US to reach 100% renewable energy in 2050, it will require 57.8 trillion. Calculate the percent change this would represent from the 2018 investment level of 546.5 billion.