-89.62% is the change from 260 to 27
Calculation steps:
[( 27 - 260 ) ÷ 260] x 100 = -89.62%
Formula
Percentage change = [(27 - 260) / 260] x 100
Subtract the new number by the original number
27 - 260 = -233
-233 ÷ 260 = -0.8961538461538462
-0.8961538461538462 x 100 = -89.62%