-94.19% is the change from 516 to 30
Calculation steps:
[( 30 - 516 ) ÷ 516] x 100 = -94.19%
Formula
Percentage change = [(30 - 516) / 516] x 100
Subtract the new number by the original number
30 - 516 = -486
-486 ÷ 516 = -0.9418604651162791
-0.9418604651162791 x 100 = -94.19%