-32.8% is the change from 628 to 422
Calculation steps:
[( 422 - 628 ) ÷ 628] x 100 = -32.8%
Formula
Percentage change = [(422 - 628) / 628] x 100
Subtract the new number by the original number
422 - 628 = -206
-206 ÷ 628 = -0.32802547770700635
-0.32802547770700635 x 100 = -32.8%