-25.94% is the change from 902 to 668
Calculation steps:
[( 668 - 902 ) ÷ 902] x 100 = -25.94%
Formula
Percentage change = [(668 - 902) / 902] x 100
Subtract the new number by the original number
668 - 902 = -234
-234 ÷ 902 = -0.25942350332594233
-0.25942350332594233 x 100 = -25.94%