-3.7% is the change from 675 to 650
Calculation steps:
[( 650 - 675 ) ÷ 675] x 100 = -3.7%
Formula
Percentage change = [(650 - 675) / 675] x 100
Subtract the new number by the original number
650 - 675 = -25
-25 ÷ 675 = -0.037037037037037035
-0.037037037037037035 x 100 = -3.7%