-16.3% is the change from 767 to 642
Calculation steps:
[( 642 - 767 ) ÷ 767] x 100 = -16.3%
Formula
Percentage change = [(642 - 767) / 767] x 100
Subtract the new number by the original number
642 - 767 = -125
-125 ÷ 767 = -0.16297262059973924
-0.16297262059973924 x 100 = -16.3%