-45.65% is the change from 920 to 500
Calculation steps:
[( 500 - 920 ) ÷ 920] x 100 = -45.65%
Formula
Percentage change = [(500 - 920) / 920] x 100
Subtract the new number by the original number
500 - 920 = -420
-420 ÷ 920 = -0.45652173913043476
-0.45652173913043476 x 100 = -45.65%