-59.31% is the change from 811 to 330
Calculation steps:
[( 330 - 811 ) ÷ 811] x 100 = -59.31%
Formula
Percentage change = [(330 - 811) / 811] x 100
Subtract the new number by the original number
330 - 811 = -481
-481 ÷ 811 = -0.593094944512947
-0.593094944512947 x 100 = -59.31%