-93.08% is the change from 578 to 40
Calculation steps:
[( 40 - 578 ) ÷ 578] x 100 = -93.08%
Formula
Percentage change = [(40 - 578) / 578] x 100
Subtract the new number by the original number
40 - 578 = -538
-538 ÷ 578 = -0.9307958477508651
-0.9307958477508651 x 100 = -93.08%