-89.1% is the change from 211 to 23
Calculation steps:
[( 23 - 211 ) ÷ 211] x 100 = -89.1%
Formula
Percentage change = [(23 - 211) / 211] x 100
Subtract the new number by the original number
23 - 211 = -188
-188 ÷ 211 = -0.8909952606635071
-0.8909952606635071 x 100 = -89.1%