-67.2% is the change from 994 to 326
Calculation steps:
[( 326 - 994 ) ÷ 994] x 100 = -67.2%
Formula
Percentage change = [(326 - 994) / 994] x 100
Subtract the new number by the original number
326 - 994 = -668
-668 ÷ 994 = -0.6720321931589537
-0.6720321931589537 x 100 = -67.2%