-18.22% is the change from 785 to 642
Calculation steps:
[( 642 - 785 ) ÷ 785] x 100 = -18.22%
Formula
Percentage change = [(642 - 785) / 785] x 100
Subtract the new number by the original number
642 - 785 = -143
-143 ÷ 785 = -0.1821656050955414
-0.1821656050955414 x 100 = -18.22%