fix grammar

As stated with the R^2 value of both graph is 0.9915 and 0.9912 which is very close to the value 1 indicate the trend process is extremely accurate.

As stated, the R^2 value of both graphs is 0.9915 and 0.9912, which is very close to the value of 1. This indicates that the trend process is extremely accurate.

To fix the grammar in the given sentence, here is the revised version:

As stated, the R^2 values of both graphs are 0.9915 and 0.9912, which are very close to the value of 1. This indicates that the trend process is extremely accurate.