-2.11% is the change from 665 to 651
Calculation steps:
[( 651 - 665 ) ÷ 665] x 100 = -2.11%
Formula
Percentage change = [(651 - 665) / 665] x 100
Subtract the new number by the original number
651 - 665 = -14
-14 ÷ 665 = -0.021052631578947368
-0.021052631578947368 x 100 = -2.11%