80.5% is the change from 159 to 287
Calculation steps:
[( 287 - 159 ) ÷ 159] x 100 = 80.5%
Formula
Percentage change = [(287 - 159) / 159] x 100
Subtract the new number by the original number
287 - 159 = 128
128 ÷ 159 = 0.8050314465408805
0.8050314465408805 x 100 = 80.5%