-3.42% is the change from 673 to 650
Calculation steps:
[( 650 - 673 ) ÷ 673] x 100 = -3.42%
Formula
Percentage change = [(650 - 673) / 673] x 100
Subtract the new number by the original number
650 - 673 = -23
-23 ÷ 673 = -0.03417533432392273
-0.03417533432392273 x 100 = -3.42%