-62.5% is the change from 8 to 3
Calculation steps:
[( 3 - 8 ) ÷ 8] x 100 = -62.5%
Formula
Percentage change = [(3 - 8) / 8] x 100
Subtract the new number by the original number
3 - 8 = -5
-5 ÷ 8 = -0.625
-0.625 x 100 = -62.5%
Example