-45.54% is the change from 920 to 501
Calculation steps:
[( 501 - 920 ) ÷ 920] x 100 = -45.54%
Formula
Percentage change = [(501 - 920) / 920] x 100
Subtract the new number by the original number
501 - 920 = -419
-419 ÷ 920 = -0.45543478260869563
-0.45543478260869563 x 100 = -45.54%