'It's increased' would normally be understood as 'it has increased'. 'It's' = 'it is' or 'it has'.
If the following word is popularly an '-ed' verb form, we would read 'it has'; if the following word is an '-ing' verb form, an adjective or a noun, we would read 'it is'. Ambiguities exist: 'he's tired of tapdancing' could be either-- but we can usually judge from the context.
First, I suggest that you slow down your posting, James. You have posted four separate threads on the same question without waiting for responses, and I don't think that you have taken time to consider my last answer.
'Increased' can be an adjective: 'Increased stock market activity is a sign of a healthy economy'. But it does not work well in the predicate position, because 'increase' is a process that continues; so 'it's increased' I would usually read as 'it has increased'. This means that something has grown. Growth does not stop, so we use present perfect to connect it to present and future possible growth.
'It has increased' -- the expected sentence.
'It is increased' -- seems unusual.
On the other hand, 'end' (finish) is a definite point in time:
'It is ended' (finished) sounds more usual; the event is complete.
'It has ended' -- connects the ending to the speaker's present feeling.
It is not OK to say 'James is kicked' = 'James has been kicked'. They have different uses. The first is timeless: 'James is kicked if he speaks out of turn'. The second indicates an action sometime between an indefinite point in the past and now.
You can construct a situation: 'the business value is increased by James each time he makes a sale'. However, I would expect it to appear in the present perfect as the ongoing result of James's salesmanship: 'the business value has been increased by James-- let's give him a bonus!'