-67.38% is the change from 515 to 168
Calculation steps:
[( 168 - 515 ) ÷ 515] x 100 = -67.38%
Formula
Percentage change = [(168 - 515) / 515] x 100
Subtract the new number by the original number
168 - 515 = -347
-347 ÷ 515 = -0.6737864077669903
-0.6737864077669903 x 100 = -67.38%