-61.55% is the change from 515 to 198
Calculation steps:
[( 198 - 515 ) ÷ 515] x 100 = -61.55%
Formula
Percentage change = [(198 - 515) / 515] x 100
Subtract the new number by the original number
198 - 515 = -317
-317 ÷ 515 = -0.6155339805825243
-0.6155339805825243 x 100 = -61.55%