def main():
	input = raw_input().split()
	n = int(input[0])
	x = int(input[1])
	y = float(input[2])
	p = y / 100
	
	print n, x, y, p
	
	answer = int((n*p) - x)

	if answer < 0:
		return 0
	else:
		return answer

	 		 	       	 		   		 	   		