-92.12% is the change from 812 to 64
Calculation steps:
[( 64 - 812 ) ÷ 812] x 100 = -92.12%
Formula
Percentage change = [(64 - 812) / 812] x 100
Subtract the new number by the original number
64 - 812 = -748
-748 ÷ 812 = -0.9211822660098522
-0.9211822660098522 x 100 = -92.12%