-45.13% is the change from 913 to 501
Calculation steps:
[( 501 - 913 ) ÷ 913] x 100 = -45.13%
Formula
Percentage change = [(501 - 913) / 913] x 100
Subtract the new number by the original number
501 - 913 = -412
-412 ÷ 913 = -0.45125958378970427
-0.45125958378970427 x 100 = -45.13%