-41.1% is the change from 236 to 139
Calculation steps:
[( 139 - 236 ) ÷ 236] x 100 = -41.1%
Formula
Percentage change = [(139 - 236) / 236] x 100
Subtract the new number by the original number
139 - 236 = -97
-97 ÷ 236 = -0.4110169491525424
-0.4110169491525424 x 100 = -41.1%