-15.19% is the change from 790 to 670
Calculation steps:
[( 670 - 790 ) ÷ 790] x 100 = -15.19%
Formula
Percentage change = [(670 - 790) / 790] x 100
Subtract the new number by the original number
670 - 790 = -120
-120 ÷ 790 = -0.1518987341772152
-0.1518987341772152 x 100 = -15.19%