-20.54% is the change from 672 to 534
Calculation steps:
[( 534 - 672 ) ÷ 672] x 100 = -20.54%
Formula
Percentage change = [(534 - 672) / 672] x 100
Subtract the new number by the original number
534 - 672 = -138
-138 ÷ 672 = -0.20535714285714285
-0.20535714285714285 x 100 = -20.54%