-31.14% is the change from 912 to 628
Calculation steps:
[( 628 - 912 ) ÷ 912] x 100 = -31.14%
Formula
Percentage change = [(628 - 912) / 912] x 100
Subtract the new number by the original number
628 - 912 = -284
-284 ÷ 912 = -0.31140350877192985
-0.31140350877192985 x 100 = -31.14%