-26.37% is the change from 910 to 670
Calculation steps:
[( 670 - 910 ) ÷ 910] x 100 = -26.37%
Formula
Percentage change = [(670 - 910) / 910] x 100
Subtract the new number by the original number
670 - 910 = -240
-240 ÷ 910 = -0.26373626373626374
-0.26373626373626374 x 100 = -26.37%