-85.11% is the change from 188 to 28
Calculation steps:
[( 28 - 188 ) ÷ 188] x 100 = -85.11%
Formula
Percentage change = [(28 - 188) / 188] x 100
Subtract the new number by the original number
28 - 188 = -160
-160 ÷ 188 = -0.851063829787234
-0.851063829787234 x 100 = -85.11%