-40.26% is the change from 390 to 233
Calculation steps:
[( 233 - 390 ) ÷ 390] x 100 = -40.26%
Formula
Percentage change = [(233 - 390) / 390] x 100
Subtract the new number by the original number
233 - 390 = -157
-157 ÷ 390 = -0.4025641025641026
-0.4025641025641026 x 100 = -40.26%