48.18% is the change from 521 to 772
Calculation steps:
[( 772 - 521 ) ÷ 521] x 100 = 48.18%
Formula
Percentage change = [(772 - 521) / 521] x 100
Subtract the new number by the original number
772 - 521 = 251
251 ÷ 521 = 0.4817658349328215
0.4817658349328215 x 100 = 48.18%