204.09% is the change from 171 to 520
Calculation steps:
[( 520 - 171 ) ÷ 171] x 100 = 204.09%
Formula
Percentage change = [(520 - 171) / 171] x 100
Subtract the new number by the original number
520 - 171 = 349
349 ÷ 171 = 2.0409356725146197
2.0409356725146197 x 100 = 204.09%