If there is a reduction in the number of workers in an organisation in the ratio 14 : 8 and an increment in the wages in the ratio 40 : 63, then the percentage change in the total wages of the workers ?

10% decrease

Change in number of workers      14  :  8

Change in individual wages         40  : 63 

Ratio of total wages =          14 x 40 :  8 x 63      =     10 : 9

Percentage change = \(\frac{1}{10}\) x 100% = 10% decrease