-33.78% is the change from 814 to 539
Calculation steps:
[( 539 - 814 ) ÷ 814] x 100 = -33.78%
Formula
Percentage change = [(539 - 814) / 814] x 100
Subtract the new number by the original number
539 - 814 = -275
-275 ÷ 814 = -0.33783783783783783
-0.33783783783783783 x 100 = -33.78%