29.75% is the change from 521 to 676
Calculation steps:
[( 676 - 521 ) ÷ 521] x 100 = 29.75%
Formula
Percentage change = [(676 - 521) / 521] x 100
Subtract the new number by the original number
676 - 521 = 155
155 ÷ 521 = 0.29750479846449135
0.29750479846449135 x 100 = 29.75%