-27.02% is the change from 918 to 670
Calculation steps:
[( 670 - 918 ) ÷ 918] x 100 = -27.02%
Formula
Percentage change = [(670 - 918) / 918] x 100
Subtract the new number by the original number
670 - 918 = -248
-248 ÷ 918 = -0.2701525054466231
-0.2701525054466231 x 100 = -27.02%