-96.5% is the change from 514 to 18
Calculation steps:
[( 18 - 514 ) ÷ 514] x 100 = -96.5%
Formula
Percentage change = [(18 - 514) / 514] x 100
Subtract the new number by the original number
18 - 514 = -496
-496 ÷ 514 = -0.9649805447470817
-0.9649805447470817 x 100 = -96.5%