-21.21% is the change from 679 to 535
Calculation steps:
[( 535 - 679 ) ÷ 679] x 100 = -21.21%
Formula
Percentage change = [(535 - 679) / 679] x 100
Subtract the new number by the original number
535 - 679 = -144
-144 ÷ 679 = -0.21207658321060383
-0.21207658321060383 x 100 = -21.21%