-25% is the change from 516 to 387
Calculation steps:
[( 387 - 516 ) ÷ 516] x 100 = -25%
Formula
Percentage change = [(387 - 516) / 516] x 100
Subtract the new number by the original number
387 - 516 = -129
-129 ÷ 516 = -0.25
-0.25 x 100 = -25%
Example