-92.42% is the change from 844 to 64
Calculation steps:
[( 64 - 844 ) ÷ 844] x 100 = -92.42%
Formula
Percentage change = [(64 - 844) / 844] x 100
Subtract the new number by the original number
64 - 844 = -780
-780 ÷ 844 = -0.9241706161137441
-0.9241706161137441 x 100 = -92.42%