1) 90/257 * 100
900/257
= 35.0%
It means, 90 is 35% of 257.
Hope this helps! Do all the others in same manner!!
2) 12/24 * 100 = 1200/24 = 50%
3) 25/208 * 100 = 2500/208 = 12.01%
4) 60/188 * 100 = 6000/188 = 31.91%
5) 24/44 * 100 = 2400/44 = 54.54%
Hope this helps!