56.62% is the change from 325 to 509
Calculation steps:
[( 509 - 325 ) ÷ 325] x 100 = 56.62%
Formula
Percentage change = [(509 - 325) / 325] x 100
Subtract the new number by the original number
509 - 325 = 184
184 ÷ 325 = 0.5661538461538461
0.5661538461538461 x 100 = 56.62%