-92.37% is the change from 236 to 18
Calculation steps:
[( 18 - 236 ) ÷ 236] x 100 = -92.37%
Formula
Percentage change = [(18 - 236) / 236] x 100
Subtract the new number by the original number
18 - 236 = -218
-218 ÷ 236 = -0.923728813559322
-0.923728813559322 x 100 = -92.37%