50.94% is the change from 159 to 240
Calculation steps:
[( 240 - 159 ) ÷ 159] x 100 = 50.94%
Formula
Percentage change = [(240 - 159) / 159] x 100
Subtract the new number by the original number
240 - 159 = 81
81 ÷ 159 = 0.5094339622641509
0.5094339622641509 x 100 = 50.94%