-44.34% is the change from 936 to 521
Calculation steps:
[( 521 - 936 ) ÷ 936] x 100 = -44.34%
Formula
Percentage change = [(521 - 936) / 936] x 100
Subtract the new number by the original number
521 - 936 = -415
-415 ÷ 936 = -0.44337606837606836
-0.44337606837606836 x 100 = -44.34%