-83.13% is the change from 326 to 55
Calculation steps:
[( 55 - 326 ) ÷ 326] x 100 = -83.13%
Formula
Percentage change = [(55 - 326) / 326] x 100
Subtract the new number by the original number
55 - 326 = -271
-271 ÷ 326 = -0.8312883435582822
-0.8312883435582822 x 100 = -83.13%