-44.57% is the change from 940 to 521
Calculation steps:
[( 521 - 940 ) ÷ 940] x 100 = -44.57%
Formula
Percentage change = [(521 - 940) / 940] x 100
Subtract the new number by the original number
521 - 940 = -419
-419 ÷ 940 = -0.44574468085106383
-0.44574468085106383 x 100 = -44.57%