-43.73% is the change from 901 to 507
Calculation steps:
[( 507 - 901 ) ÷ 901] x 100 = -43.73%
Formula
Percentage change = [(507 - 901) / 901] x 100
Subtract the new number by the original number
507 - 901 = -394
-394 ÷ 901 = -0.43729189789123196
-0.43729189789123196 x 100 = -43.73%