-2.54% is the change from 630 to 614
Calculation steps:
[( 614 - 630 ) ÷ 630] x 100 = -2.54%
Formula
Percentage change = [(614 - 630) / 630] x 100
Subtract the new number by the original number
614 - 630 = -16
-16 ÷ 630 = -0.025396825396825397
-0.025396825396825397 x 100 = -2.54%