55.51% is the change from 517 to 804
Calculation steps:
[( 804 - 517 ) ÷ 517] x 100 = 55.51%
Formula
Percentage change = [(804 - 517) / 517] x 100
Subtract the new number by the original number
804 - 517 = 287
287 ÷ 517 = 0.5551257253384912
0.5551257253384912 x 100 = 55.51%