-59.4% is the change from 670 to 272
Calculation steps:
[( 272 - 670 ) ÷ 670] x 100 = -59.4%
Formula
Percentage change = [(272 - 670) / 670] x 100
Subtract the new number by the original number
272 - 670 = -398
-398 ÷ 670 = -0.5940298507462687
-0.5940298507462687 x 100 = -59.4%