-51.55% is the change from 516 to 250
Calculation steps:
[( 250 - 516 ) ÷ 516] x 100 = -51.55%
Formula
Percentage change = [(250 - 516) / 516] x 100
Subtract the new number by the original number
250 - 516 = -266
-266 ÷ 516 = -0.5155038759689923
-0.5155038759689923 x 100 = -51.55%