127.51% is the change from 229 to 521
Calculation steps:
[( 521 - 229 ) ÷ 229] x 100 = 127.51%
Formula
Percentage change = [(521 - 229) / 229] x 100
Subtract the new number by the original number
521 - 229 = 292
292 ÷ 229 = 1.275109170305677
1.275109170305677 x 100 = 127.51%