-96.88% is the change from 512 to 16
Calculation steps:
[( 16 - 512 ) ÷ 512] x 100 = -96.88%
Formula
Percentage change = [(16 - 512) / 512] x 100
Subtract the new number by the original number
16 - 512 = -496
-496 ÷ 512 = -0.96875
-0.96875 x 100 = -96.88%