69.81% is the change from 159 to 270
Calculation steps:
[( 270 - 159 ) ÷ 159] x 100 = 69.81%
Formula
Percentage change = [(270 - 159) / 159] x 100
Subtract the new number by the original number
270 - 159 = 111
111 ÷ 159 = 0.6981132075471698
0.6981132075471698 x 100 = 69.81%