85.71% is the change from 28 to 52
Calculation steps:
[( 52 - 28 ) ÷ 28] x 100 = 85.71%
Formula
Percentage change = [(52 - 28) / 28] x 100
Subtract the new number by the original number
52 - 28 = 24
24 ÷ 28 = 0.8571428571428571
0.8571428571428571 x 100 = 85.71%