-44.58% is the change from 913 to 506
Calculation steps:
[( 506 - 913 ) ÷ 913] x 100 = -44.58%
Formula
Percentage change = [(506 - 913) / 913] x 100
Subtract the new number by the original number
506 - 913 = -407
-407 ÷ 913 = -0.4457831325301205
-0.4457831325301205 x 100 = -44.58%