During an ecological survey of a nature reserve, researchers sampled populations of the native two-spot ladybird (Adalia bipunctata) and the invasive harlequin ladybird (Harmonia axyridis). They recorded 2,8502,8502,850 native two-spot ladybirds and 41,20041,20041,200 invasive harlequin ladybirds.
Calculate the percentage of all sampled ladybirds in this survey that are native two-spot ladybirds.
Show your working and give your answer to one decimal place.
