If the eligible person is an adult, he/she will receive the federal and provincial “Base Amount” ONLY. For example:
The federal disability amount for 2020 is $8,576, and 15% of that is $1,286.40
The provincial disability amount in Ontario for 2020 is $8,712, and 10% of that is $871.20
Therefore, a DTC eligible adult in Ontario would have received $1,286.40 + $871.20 = $2,157.60