-55.98% is the change from 920 to 405
Calculation steps:
[( 405 - 920 ) ÷ 920] x 100 = -55.98%
Formula
Percentage change = [(405 - 920) / 920] x 100
Subtract the new number by the original number
405 - 920 = -515
-515 ÷ 920 = -0.5597826086956522
-0.5597826086956522 x 100 = -55.98%