-36.19% is the change from 666 to 425
Calculation steps:
[( 425 - 666 ) ÷ 666] x 100 = -36.19%
Formula
Percentage change = [(425 - 666) / 666] x 100
Subtract the new number by the original number
425 - 666 = -241
-241 ÷ 666 = -0.36186186186186187
-0.36186186186186187 x 100 = -36.19%