-50% is the change from 188 to 94
Calculation steps:
[( 94 - 188 ) ÷ 188] x 100 = -50%
Formula
Percentage change = [(94 - 188) / 188] x 100
Subtract the new number by the original number
94 - 188 = -94
-94 ÷ 188 = -0.5
-0.5 x 100 = -50%
Example