-70.38% is the change from 665 to 197
Calculation steps:
[( 197 - 665 ) ÷ 665] x 100 = -70.38%
Formula
Percentage change = [(197 - 665) / 665] x 100
Subtract the new number by the original number
197 - 665 = -468
-468 ÷ 665 = -0.7037593984962406
-0.7037593984962406 x 100 = -70.38%