-60% is the change from 825 to 330
Calculation steps:
[( 330 - 825 ) ÷ 825] x 100 = -60%
Formula
Percentage change = [(330 - 825) / 825] x 100
Subtract the new number by the original number
330 - 825 = -495
-495 ÷ 825 = -0.6
-0.6 x 100 = -60%
Example