-50% is the change from 372 to 186
Calculation steps:
[( 186 - 372 ) ÷ 372] x 100 = -50%
Formula
Percentage change = [(186 - 372) / 372] x 100
Subtract the new number by the original number
186 - 372 = -186
-186 ÷ 372 = -0.5
-0.5 x 100 = -50%
Example