-44.47% is the change from 913 to 507
Calculation steps:
[( 507 - 913 ) ÷ 913] x 100 = -44.47%
Formula
Percentage change = [(507 - 913) / 913] x 100
Subtract the new number by the original number
507 - 913 = -406
-406 ÷ 913 = -0.44468784227820374
-0.44468784227820374 x 100 = -44.47%