-96.12% is the change from 516 to 20
Calculation steps:
[( 20 - 516 ) ÷ 516] x 100 = -96.12%
Formula
Percentage change = [(20 - 516) / 516] x 100
Subtract the new number by the original number
20 - 516 = -496
-496 ÷ 516 = -0.9612403100775194
-0.9612403100775194 x 100 = -96.12%