16.12% is the change from 521 to 605
Calculation steps:
[( 605 - 521 ) ÷ 521] x 100 = 16.12%
Formula
Percentage change = [(605 - 521) / 521] x 100
Subtract the new number by the original number
605 - 521 = 84
84 ÷ 521 = 0.16122840690978887
0.16122840690978887 x 100 = 16.12%