-96.99% is the change from 531 to 16
Calculation steps:
[( 16 - 531 ) ÷ 531] x 100 = -96.99%
Formula
Percentage change = [(16 - 531) / 531] x 100
Subtract the new number by the original number
16 - 531 = -515
-515 ÷ 531 = -0.9698681732580038
-0.9698681732580038 x 100 = -96.99%