-59.58% is the change from 663 to 268
Calculation steps:
[( 268 - 663 ) ÷ 663] x 100 = -59.58%
Formula
Percentage change = [(268 - 663) / 663] x 100
Subtract the new number by the original number
268 - 663 = -395
-395 ÷ 663 = -0.5957767722473605
-0.5957767722473605 x 100 = -59.58%