-51.33% is the change from 900 to 438
Calculation steps:
[( 438 - 900 ) ÷ 900] x 100 = -51.33%
Formula
Percentage change = [(438 - 900) / 900] x 100
Subtract the new number by the original number
438 - 900 = -462
-462 ÷ 900 = -0.5133333333333333
-0.5133333333333333 x 100 = -51.33%