shares of wd40 co fell 88 in afterhours trading tuesday after the industrial goods company logged higher costs of goods and expenses in the latest quarter earnings per share were 61 cents on revenue of 1152 million compared with 142 a year earlier on revenue of 1116 million its cost of products sold was 562 million in its fiscal fourth quarter compared with 488 million a year earlier its gross margin was 512 compared with 563 a year earlier operating expenses totaled 466 million compared with 383 million a year earlier the company logged big increases in selling general and administrative costs and advertising and sales promotion expenses in the fourth quarter we made a thoughtful and deliberate decision to invest significantly in the sales momentum we have been experiencing and increase our investments in brand awareness and market penetration chairman and chief executive garry ridge said in prepared remarks though this decision negatively impacted our net income in the fourth quarter we believe investments in these key strategic areas will drive strong topline growth in the future for its fiscal 2022 the company expects net sales between 522 million and 542 million and earnings per share to range from 524 to 538 shares of the company ended tuesday at 22929 up 01 shares are down 14 this year