8.51% is the change from 564 to 612
Calculation steps:
[( 612 - 564 ) ÷ 564] x 100 = 8.51%
Formula
Percentage change = [(612 - 564) / 564] x 100
Subtract the new number by the original number
612 - 564 = 48
48 ÷ 564 = 0.0851063829787234
0.0851063829787234 x 100 = 8.51%