-98.64% is the change from 516 to 7
Calculation steps:
[( 7 - 516 ) ÷ 516] x 100 = -98.64%
Formula
Percentage change = [(7 - 516) / 516] x 100
Subtract the new number by the original number
7 - 516 = -509
-509 ÷ 516 = -0.9864341085271318
-0.9864341085271318 x 100 = -98.64%