-39.23% is the change from 390 to 237
Calculation steps:
[( 237 - 390 ) ÷ 390] x 100 = -39.23%
Formula
Percentage change = [(237 - 390) / 390] x 100
Subtract the new number by the original number
237 - 390 = -153
-153 ÷ 390 = -0.3923076923076923
-0.3923076923076923 x 100 = -39.23%