# Reading the numbers > Getting fluent in the language of business **[[Business maths]]** --- ## Understanding data **[[Confidence]]** - **[[Estimates]]** - **[[Variance]]** - **[[Samples]]** - **[[Scale]]** - **[[Ratios]]** --- ## Understanding money **[[Cash and profit]]** - **[[The pricing lever]]** - **[[Paying for growth]]** - **[[Customer-funded growth]]** - **[[Beyond margins]]** - **[[The churn ceiling]]** - **[[Reading retention]]** ---