-12.63% is the change from 578 to 505
Calculation steps:
[( 505 - 578 ) ÷ 578] x 100 = -12.63%
Formula
Percentage change = [(505 - 578) / 578] x 100
Subtract the new number by the original number
505 - 578 = -73
-73 ÷ 578 = -0.12629757785467127
-0.12629757785467127 x 100 = -12.63%