-63.27% is the change from 833 to 306
Calculation steps:
[( 306 - 833 ) ÷ 833] x 100 = -63.27%
Formula
Percentage change = [(306 - 833) / 833] x 100
Subtract the new number by the original number
306 - 833 = -527
-527 ÷ 833 = -0.6326530612244898
-0.6326530612244898 x 100 = -63.27%