-52.38% is the change from 630 to 300
Calculation steps:
[( 300 - 630 ) ÷ 630] x 100 = -52.38%
Formula
Percentage change = [(300 - 630) / 630] x 100
Subtract the new number by the original number
300 - 630 = -330
-330 ÷ 630 = -0.5238095238095238
-0.5238095238095238 x 100 = -52.38%