What was Knightscope's sales and marketing spending as a percentage of total revenue in 2021? (answer in percentage, rounded to the nearest integer)

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Knightscope spent approximately 353 % of its 2021 revenue on sales & marketing.
This percentage was calculated by retrieving Knightscope’s 2021 full-year revenue and sales-&-marketing expenses from its income-statement filing, then dividing the expense by revenue and rounding to the nearest whole number .