-90.76% is the change from 693 to 64
Calculation steps:
[( 64 - 693 ) ÷ 693] x 100 = -90.76%
Formula
Percentage change = [(64 - 693) / 693] x 100
Subtract the new number by the original number
64 - 693 = -629
-629 ÷ 693 = -0.9076479076479076
-0.9076479076479076 x 100 = -90.76%