-29.25% is the change from 670 to 474
Calculation steps:
[( 474 - 670 ) ÷ 670] x 100 = -29.25%
Formula
Percentage change = [(474 - 670) / 670] x 100
Subtract the new number by the original number
474 - 670 = -196
-196 ÷ 670 = -0.29253731343283584
-0.29253731343283584 x 100 = -29.25%