"The more sensationalist ones have that up 40 to 45 per cent. Following Facebook ’s recent admittance to inflating video engagement statistics by between 60 % and 80 % for two years , advertising agencies have called for third - party oversight for marketing investment . Sir Martin Sorrell said companies were increasingly questioning their digital spending , citing Proctor and Gamble 's withdrawal of its investments in targeted ads on Facebook last month , and that measurements needed to be independent to be of value .
Following Facebook ’s recent admittance to inflating video engagement statistics by between 60 % and 80 % for two years , advertising agencies have called for third - party oversight for marketing investment . Sir Martin Sorrell said companies were increasingly questioning their digital spending , citing Proctor and Gamble 's withdrawal of its investments in targeted ads on Facebook last month , and that measurements needed to be independent to be of value .