-30.22% is the change from 900 to 628
Calculation steps:
[( 628 - 900 ) ÷ 900] x 100 = -30.22%
Formula
Percentage change = [(628 - 900) / 900] x 100
Subtract the new number by the original number
628 - 900 = -272
-272 ÷ 900 = -0.3022222222222222
-0.3022222222222222 x 100 = -30.22%