-96.74% is the change from 491 to 16
Calculation steps:
[( 16 - 491 ) ÷ 491] x 100 = -96.74%
Formula
Percentage change = [(16 - 491) / 491] x 100
Subtract the new number by the original number
16 - 491 = -475
-475 ÷ 491 = -0.9674134419551935
-0.9674134419551935 x 100 = -96.74%