-93.04% is the change from 919 to 64
Calculation steps:
[( 64 - 919 ) ÷ 919] x 100 = -93.04%
Formula
Percentage change = [(64 - 919) / 919] x 100
Subtract the new number by the original number
64 - 919 = -855
-855 ÷ 919 = -0.9303590859630033
-0.9303590859630033 x 100 = -93.04%