-30.37% is the change from 326 to 227
Calculation steps:
[( 227 - 326 ) ÷ 326] x 100 = -30.37%
Formula
Percentage change = [(227 - 326) / 326] x 100
Subtract the new number by the original number
227 - 326 = -99
-99 ÷ 326 = -0.30368098159509205
-0.30368098159509205 x 100 = -30.37%