TOKYO (AP) — Japanese video-game maker Nintendo on Thursday reported a 43% decline in profit for the fiscal year through March, but promised a turnaround as its Switch console upgrade goes on sale in June.Nintendo Co.’s profit for the fiscal year through March totaled 278.8 billion yen ($1.9 billion), down from 490 billion yen the previous fiscal year.Annual sales slipped 30% to 1.16 trillion yen ($8 billion) from 1.67 trillion yen, according to the Kyoto-based maker of the Super Mario and Donke...