-93.35% is the change from 963 to 64
Calculation steps:
[( 64 - 963 ) ÷ 963] x 100 = -93.35%
Formula
Percentage change = [(64 - 963) / 963] x 100
Subtract the new number by the original number
64 - 963 = -899
-899 ÷ 963 = -0.9335410176531672
-0.9335410176531672 x 100 = -93.35%