-20.43% is the change from 783 to 623
Calculation steps:
[( 623 - 783 ) ÷ 783] x 100 = -20.43%
Formula
Percentage change = [(623 - 783) / 783] x 100
Subtract the new number by the original number
623 - 783 = -160
-160 ÷ 783 = -0.20434227330779056
-0.20434227330779056 x 100 = -20.43%