-77.44% is the change from 687 to 155
Calculation steps:
[( 155 - 687 ) ÷ 687] x 100 = -77.44%
Formula
Percentage change = [(155 - 687) / 687] x 100
Subtract the new number by the original number
155 - 687 = -532
-532 ÷ 687 = -0.7743813682678311
-0.7743813682678311 x 100 = -77.44%