-90.34% is the change from 963 to 93
Calculation steps:
[( 93 - 963 ) ÷ 963] x 100 = -90.34%
Formula
Percentage change = [(93 - 963) / 963] x 100
Subtract the new number by the original number
93 - 963 = -870
-870 ÷ 963 = -0.9034267912772586
-0.9034267912772586 x 100 = -90.34%