As per first graph given in the question,
Number of people working in night shifts from Call Center Industry = Total number of people working in industries x 32%
Number of people working in night shifts from Call Center Industry = 40250 x 32/100 = 12880
As per second graph given in the question,
Then Number of females working in night shifts from Call Center Industry = Number of people working in night shifts from Call Center Industry x 45%
Number of women working in night shifts from Call Center Industry = 12880
x 45/100 = 5796
So, the number of men working from call center Industry = 12880 - 5796 = 7084
Hence, Required ratio = 7084 : 5796 = 11 : 9
