Speedy Gonzales started out as a character in another cartoon before animators Friz Freleng and Hawley Pratt introduced him in an animated short of his own in 1955. Then, the legendary Mel Blanc voiced the mouse.
Given crore on its own is not a currency anywhere, I am assuming that you mean crore Rupees which equals ten million rupees. Rupees are the currency of India. So 300 crore Rupees is 65189030.50 USD. crore means 30,000,000 Indian Rupees (seven 0's). With currency conversion, it equates to approximately $612,182.46.
Crore is a unit in Indian numerical system which is equivalent to 10 million. So one crore Rupees is same as 10 million Rupees. This part is fixed and doesn't change with time. Next, we need to convert Rupees into Dollars-and for that we need the currency exchange rate between Rupee and Dollar.