Marty takes a summer job painting houses. During the summer, he earns an after-tax income of $3,500 and he spends $2,500 on goods and services. What was Marty's saving during the summer and the change, if any, in his wealth? >>> If your answer is negative, include a minus sign. If your answer is positive, do not include a plus sign. Question content area bottom Part 1 Marty's saving during the summer is enter your response here dollars. Part 2 The change in Marty's wealth is enter your response here dollars