Keyword Analysis & Research: how do you calculate forecast error

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how do you calculate forecast error	1.59	0.3	4007	73	35
how	1.56	1	4444	72	3
do	0.05	0.2	9376	16	2
you	1.85	0.1	2757	53	3
calculate	1.34	0.4	5279	10	9
forecast	0.51	0.3	3808	58	8
error	0.26	0.6	2200	45	5

Keyword	CPC	PCC	Volume	Score
how do you calculate forecast error	1.3	0.5	6212	39