-49.81% is the change from 516 to 259
Calculation steps:
[( 259 - 516 ) ÷ 516] x 100 = -49.81%
Formula
Percentage change = [(259 - 516) / 516] x 100
Subtract the new number by the original number
259 - 516 = -257
-257 ÷ 516 = -0.49806201550387597
-0.49806201550387597 x 100 = -49.81%