Answer: - 29.03% error
Step-by-step explanation:
% Error is:
Percentage error = (Vtrue - Vobserved)/(Vtrue) × 100%
where Vtrue is the actual value and Vobserved or (Vpredicted) are the observed, (or predicted) values.
Vtrue = 220
Vpredicted = 310
(220-310/220)*(100%)
= - 29.03% error
