51.79% is the change from 56 to 85
Calculation steps:
[( 85 - 56 ) ÷ 56] x 100 = 51.79%
Formula
Percentage change = [(85 - 56) / 56] x 100
Subtract the new number by the original number
85 - 56 = 29
29 ÷ 56 = 0.5178571428571429
0.5178571428571429 x 100 = 51.79%