-91.2% is the change from 1000 to 88
Calculation steps:
[( 88 - 1000 ) ÷ 1000] x 100 = -91.2%
Formula
Percentage change = [(88 - 1000) / 1000] x 100
Subtract the new number by the original number
88 - 1000 = -912
-912 ÷ 1000 = -0.912
-0.912 x 100 = -91.2%