-31.07% is the change from 914 to 630
Calculation steps:
[( 630 - 914 ) ÷ 914] x 100 = -31.07%
Formula
Percentage change = [(630 - 914) / 914] x 100
Subtract the new number by the original number
630 - 914 = -284
-284 ÷ 914 = -0.31072210065645517
-0.31072210065645517 x 100 = -31.07%