47.22% is the change from 521 to 767
Calculation steps:
[( 767 - 521 ) ÷ 521] x 100 = 47.22%
Formula
Percentage change = [(767 - 521) / 521] x 100
Subtract the new number by the original number
767 - 521 = 246
246 ÷ 521 = 0.472168905950096
0.472168905950096 x 100 = 47.22%