-77.1% is the change from 607 to 139
Calculation steps:
[( 139 - 607 ) ÷ 607] x 100 = -77.1%
Formula
Percentage change = [(139 - 607) / 607] x 100
Subtract the new number by the original number
139 - 607 = -468
-468 ÷ 607 = -0.771004942339374
-0.771004942339374 x 100 = -77.1%