-66.24% is the change from 388 to 131
Calculation steps:
[( 131 - 388 ) ÷ 388] x 100 = -66.24%
Formula
Percentage change = [(131 - 388) / 388] x 100
Subtract the new number by the original number
131 - 388 = -257
-257 ÷ 388 = -0.6623711340206185
-0.6623711340206185 x 100 = -66.24%