-90.58% is the change from 987 to 93
Calculation steps:
[( 93 - 987 ) ÷ 987] x 100 = -90.58%
Formula
Percentage change = [(93 - 987) / 987] x 100
Subtract the new number by the original number
93 - 987 = -894
-894 ÷ 987 = -0.9057750759878419
-0.9057750759878419 x 100 = -90.58%