-1.12% is the change from 89 to 88
Calculation steps:
[( 88 - 89 ) ÷ 89] x 100 = -1.12%
Formula
Percentage change = [(88 - 89) / 89] x 100
Subtract the new number by the original number
88 - 89 = -1
-1 ÷ 89 = -0.011235955056179775
-0.011235955056179775 x 100 = -1.12%