-44.53% is the change from 914 to 507
Calculation steps:
[( 507 - 914 ) ÷ 914] x 100 = -44.53%
Formula
Percentage change = [(507 - 914) / 914] x 100
Subtract the new number by the original number
507 - 914 = -407
-407 ÷ 914 = -0.44529540481400437
-0.44529540481400437 x 100 = -44.53%