-41.09% is the change from 331 to 195
Calculation steps:
[( 195 - 331 ) ÷ 331] x 100 = -41.09%
Formula
Percentage change = [(195 - 331) / 331] x 100
Subtract the new number by the original number
195 - 331 = -136
-136 ÷ 331 = -0.4108761329305136
-0.4108761329305136 x 100 = -41.09%