John is a photographer with professional teas before sales taxes of $125.000 in 2021 On April 21, 2021, he purchased a live-work studio, where part of it can be used for business and the rest for his living quarters for $200,000 before sales taxes. John uses 45% of the studio for photoshoots and the rest personally. Compute John's GST payable accoming these were the only relevant items