-13.49% is the change from 578 to 500
Calculation steps:
[( 500 - 578 ) ÷ 578] x 100 = -13.49%
Formula
Percentage change = [(500 - 578) / 578] x 100
Subtract the new number by the original number
500 - 578 = -78
-78 ÷ 578 = -0.13494809688581316
-0.13494809688581316 x 100 = -13.49%