47.41% is the change from 521 to 768
Calculation steps:
[( 768 - 521 ) ÷ 521] x 100 = 47.41%
Formula
Percentage change = [(768 - 521) / 521] x 100
Subtract the new number by the original number
768 - 521 = 247
247 ÷ 521 = 0.4740882917466411
0.4740882917466411 x 100 = 47.41%