-47.21% is the change from 949 to 501
Calculation steps:
[( 501 - 949 ) ÷ 949] x 100 = -47.21%
Formula
Percentage change = [(501 - 949) / 949] x 100
Subtract the new number by the original number
501 - 949 = -448
-448 ÷ 949 = -0.4720758693361433
-0.4720758693361433 x 100 = -47.21%