-63.64% is the change from 330 to 120
Calculation steps:
[( 120 - 330 ) ÷ 330] x 100 = -63.64%
Formula
Percentage change = [(120 - 330) / 330] x 100
Subtract the new number by the original number
120 - 330 = -210
-210 ÷ 330 = -0.6363636363636364
-0.6363636363636364 x 100 = -63.64%