-59.64% is the change from 664 to 268
Calculation steps:
[( 268 - 664 ) ÷ 664] x 100 = -59.64%
Formula
Percentage change = [(268 - 664) / 664] x 100
Subtract the new number by the original number
268 - 664 = -396
-396 ÷ 664 = -0.5963855421686747
-0.5963855421686747 x 100 = -59.64%