-82.69% is the change from 670 to 116
Calculation steps:
[( 116 - 670 ) ÷ 670] x 100 = -82.69%
Formula
Percentage change = [(116 - 670) / 670] x 100
Subtract the new number by the original number
116 - 670 = -554
-554 ÷ 670 = -0.826865671641791
-0.826865671641791 x 100 = -82.69%