-92.32% is the change from 833 to 64
Calculation steps:
[( 64 - 833 ) ÷ 833] x 100 = -92.32%
Formula
Percentage change = [(64 - 833) / 833] x 100
Subtract the new number by the original number
64 - 833 = -769
-769 ÷ 833 = -0.9231692677070829
-0.9231692677070829 x 100 = -92.32%