-15.67% is the change from 670 to 565
Calculation steps:
[( 565 - 670 ) ÷ 670] x 100 = -15.67%
Formula
Percentage change = [(565 - 670) / 670] x 100
Subtract the new number by the original number
565 - 670 = -105
-105 ÷ 670 = -0.15671641791044777
-0.15671641791044777 x 100 = -15.67%