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.
A million is a thousand thousand. So a million dollars is 1,000,000. Each dollar is about 45 rupees. So a million dollars are 45x1,000,000, which is 45,000,000. Or simply 45 million rupees. If you want to read this in the Indian system of lakhs and crores, then it is 4.5 crores.