-40.31% is the change from 516 to 308
Calculation steps:
[( 308 - 516 ) ÷ 516] x 100 = -40.31%
Formula
Percentage change = [(308 - 516) / 516] x 100
Subtract the new number by the original number
308 - 516 = -208
-208 ÷ 516 = -0.40310077519379844
-0.40310077519379844 x 100 = -40.31%