During the 1920s the rapid increase in turnover and profits was not due to increased prices but to higher sales volume.
dˈʊɹɹɪŋ ðə nˈaɪntiːnhˈʌndɹɪd twˈɛnti z ðə ɹˈæpɪd ˈɪŋkɹiːs ɪn tˈɜːnoʊvɚ ænd pɹˈɑːfɪts wʌz nˌɑːt dˈuː tʊ ɪŋkɹˈiːst pɹˈaɪsᵻz bˌʌt tə hˈaɪɚ sˈeɪlz vˈɑːljuːm.