4.8% is the change from 521 to 546
Calculation steps:
[( 546 - 521 ) ÷ 521] x 100 = 4.8%
Formula
Percentage change = [(546 - 521) / 521] x 100
Subtract the new number by the original number
546 - 521 = 25
25 ÷ 521 = 0.04798464491362764
0.04798464491362764 x 100 = 4.8%