62% is the change from 521 to 844
Calculation steps:
[( 844 - 521 ) ÷ 521] x 100 = 62%
Formula
Percentage change = [(844 - 521) / 521] x 100
Subtract the new number by the original number
844 - 521 = 323
323 ÷ 521 = 0.6199616122840691
0.6199616122840691 x 100 = 62%