-36.36% is the change from 330 to 210
Calculation steps:
[( 210 - 330 ) ÷ 330] x 100 = -36.36%
Formula
Percentage change = [(210 - 330) / 330] x 100
Subtract the new number by the original number
210 - 330 = -120
-120 ÷ 330 = -0.36363636363636365
-0.36363636363636365 x 100 = -36.36%