How much did a bicycle cost in 1977?
The cost of bicycle in 1977 depending on the brand and quality. A good quality bike from Schwinn cost about 75 to 100 dollars. Cheaper models could be purchased for around 50 dollars.
John wanted to buy a bicycle that cost 89.95 and had a tax of 5.5 percent He had 100.00 Did he have enough money?
Your question is rather like asking, "How much does a vehicle cost?" Is the vehicle a bicycle or a jumbo jet? So, the answer to your question depends on (a) what you mean by a 'power transformer' (there are various definitions)?, (b) what are its power and voltage ratings?, (c) is it single phase or three phase?, and (d) are you including the cost of its cooling system?