{"methodology":{"version":"2026-07-16","title":"KeiBan AI導入費用対効果シミュレーション計算方法","supervisedBy":"中小企業診断士 齋藤翔平が設計・監修","defaults":{"employees":20,"hourlyCost":2500,"monthlyDecisionHours":3,"improvementRate":20,"grossProfitLift":3000},"ranges":{"employees":{"min":1,"max":100,"step":1,"unit":"名"},"hourlyCost":{"min":1000,"max":6000,"step":100,"unit":"円/時間"},"monthlyDecisionHours":{"min":1,"max":12,"step":1,"unit":"時間/月・人"},"improvementRate":{"min":5,"max":60,"step":5,"unit":"%"},"grossProfitLift":{"min":0,"max":20000,"step":1000,"unit":"円/月・人"}},"formulas":{"savedTimeValue":"利用社員数 × 判断・相談時間 × 1時間あたり人件費 × AI相談で減らせる割合","grossProfitValue":"利用社員数 × 1人あたり月間粗利改善額","monthlyValue":"判断時間の削減価値 + 粗利改善の効果","netValue":"月間の効果目安 - KeiBan月額","benefitCostRatio":"月間の効果目安 ÷ KeiBan月額","roiPercent":"差し引き効果 ÷ KeiBan月額 × 100"},"cautions":["本試算は、KeiBan導入による売上増加、利益増加、工数削減を保証するものではありません。","粗利改善額は実績値ではなく、検討企業が自社の前提を入力する仮定値です。","人件費換算は、削減時間が他の付加価値業務に使われることを前提とした機会価値です。","導入判断では、14日間の無料体験で利用率、相談内容、判断時間の変化を実測してください。"]},"pricing":{"currency":"JPY","taxIncluded":true,"light":{"monthlyFee":4980,"includedSeats":5},"standard":{"monthlyFee":14800,"includedSeats":20,"additionalSeatFee":700}},"defaultExample":{"input":{"employees":20,"hourlyCost":2500,"monthlyDecisionHours":3,"improvementRate":20,"grossProfitLift":3000},"result":{"planName":"スタンダードプラン","savedTimeValue":30000,"grossProfitValue":60000,"monthlyValue":90000,"monthlyFee":14800,"netValue":75200,"annualValue":1080000,"annualFee":177600,"annualNetValue":902400,"benefitCostRatio":6.081081081081081,"roiPercent":508.10810810810807}},"source":"https://www.keiban.net/roi/methodology","calculator":"https://www.keiban.net/roi"}