all we have in bitcoin are transactions, the whole blockchain is these transactions chained together.
the upper left chart is showing the number of transactions that created an output and that output is not yet spent. we can have 1 transaction that creates multiple outputs but it counts that transaction as one.
the upper right one is the total of those outputs so in that transaction example it counts the outputs instead of the whole transaction which is why the number is bigger.
the bottom left one is showing the entire UTXO set that the nodes store and belongs to the entire history of bitcoin, those outputs that are not yet spent. and the size is the size of that database in memory. which is the sum of raw bytes.
Thanks a lot. You cleared my confusion between top left and top right chart having difference on there value.