1829.63% is the change from 27 to 521
Calculation steps:
[( 521 - 27 ) ÷ 27] x 100 = 1829.63%
Formula
Percentage change = [(521 - 27) / 27] x 100
Subtract the new number by the original number
521 - 27 = 494
494 ÷ 27 = 18.296296296296298
18.296296296296298 x 100 = 1829.63%