-24.73% is the change from 837 to 630
Calculation steps:
[( 630 - 837 ) ÷ 837] x 100 = -24.73%
Formula
Percentage change = [(630 - 837) / 837] x 100
Subtract the new number by the original number
630 - 837 = -207
-207 ÷ 837 = -0.24731182795698925
-0.24731182795698925 x 100 = -24.73%