-19.71% is the change from 837 to 672
Calculation steps:
[( 672 - 837 ) ÷ 837] x 100 = -19.71%
Formula
Percentage change = [(672 - 837) / 837] x 100
Subtract the new number by the original number
672 - 837 = -165
-165 ÷ 837 = -0.1971326164874552
-0.1971326164874552 x 100 = -19.71%