-83.47% is the change from 236 to 39
Calculation steps:
[( 39 - 236 ) ÷ 236] x 100 = -83.47%
Formula
Percentage change = [(39 - 236) / 236] x 100
Subtract the new number by the original number
39 - 236 = -197
-197 ÷ 236 = -0.8347457627118644
-0.8347457627118644 x 100 = -83.47%