-22.72% is the change from 515 to 398
Calculation steps:
[( 398 - 515 ) ÷ 515] x 100 = -22.72%
Formula
Percentage change = [(398 - 515) / 515] x 100
Subtract the new number by the original number
398 - 515 = -117
-117 ÷ 515 = -0.22718446601941747
-0.22718446601941747 x 100 = -22.72%