Find out the wrong number in the series:455, 445, 465, 435, 485, 415,515,455

455 465 485 415

455

The above series is made up by combining two series i.e. 455, 465, 485, 515 and 445, 435, 415, 455 (455 is wrong) 455 →(+10) 465 →(+20) 485 →(+30) 515 445 →(-10) 435 →(-20) 415 →(-30) 455