-7.23% is the change from 692 to 642
Calculation steps:
[( 642 - 692 ) ÷ 692] x 100 = -7.23%
Formula
Percentage change = [(642 - 692) / 692] x 100
Subtract the new number by the original number
642 - 692 = -50
-50 ÷ 692 = -0.07225433526011561
-0.07225433526011561 x 100 = -7.23%