-46.12% is the change from 516 to 278
Calculation steps:
[( 278 - 516 ) ÷ 516] x 100 = -46.12%
Formula
Percentage change = [(278 - 516) / 516] x 100
Subtract the new number by the original number
278 - 516 = -238
-238 ÷ 516 = -0.46124031007751937
-0.46124031007751937 x 100 = -46.12%