-8.94% is the change from 705 to 642
Calculation steps:
[( 642 - 705 ) ÷ 705] x 100 = -8.94%
Formula
Percentage change = [(642 - 705) / 705] x 100
Subtract the new number by the original number
642 - 705 = -63
-63 ÷ 705 = -0.08936170212765958
-0.08936170212765958 x 100 = -8.94%