47.06% is the change from 578 to 850
Calculation steps:
[( 850 - 578 ) ÷ 578] x 100 = 47.06%
Formula
Percentage change = [(850 - 578) / 578] x 100
Subtract the new number by the original number
850 - 578 = 272
272 ÷ 578 = 0.47058823529411764
0.47058823529411764 x 100 = 47.06%