6.7% is the change from 522 to 557
Calculation steps:
[( 557 - 522 ) ÷ 522] x 100 = 6.7%
Formula
Percentage change = [(557 - 522) / 522] x 100
Subtract the new number by the original number
557 - 522 = 35
35 ÷ 522 = 0.06704980842911877
0.06704980842911877 x 100 = 6.7%