-26.94% is the change from 917 to 670
Calculation steps:
[( 670 - 917 ) ÷ 917] x 100 = -26.94%
Formula
Percentage change = [(670 - 917) / 917] x 100
Subtract the new number by the original number
670 - 917 = -247
-247 ÷ 917 = -0.2693565976008724
-0.2693565976008724 x 100 = -26.94%