18.51% is the change from 470 to 557
Calculation steps:
[( 557 - 470 ) ÷ 470] x 100 = 18.51%
Formula
Percentage change = [(557 - 470) / 470] x 100
Subtract the new number by the original number
557 - 470 = 87
87 ÷ 470 = 0.1851063829787234
0.1851063829787234 x 100 = 18.51%