-43.61% is the change from 924 to 521
Calculation steps:
[( 521 - 924 ) ÷ 924] x 100 = -43.61%
Formula
Percentage change = [(521 - 924) / 924] x 100
Subtract the new number by the original number
521 - 924 = -403
-403 ÷ 924 = -0.43614718614718617
-0.43614718614718617 x 100 = -43.61%