-24.3% is the change from 675 to 511
Calculation steps:
[( 511 - 675 ) ÷ 675] x 100 = -24.3%
Formula
Percentage change = [(511 - 675) / 675] x 100
Subtract the new number by the original number
511 - 675 = -164
-164 ÷ 675 = -0.24296296296296296
-0.24296296296296296 x 100 = -24.3%