-77.86% is the change from 700 to 155
Calculation steps:
[( 155 - 700 ) ÷ 700] x 100 = -77.86%
Formula
Percentage change = [(155 - 700) / 700] x 100
Subtract the new number by the original number
155 - 700 = -545
-545 ÷ 700 = -0.7785714285714286
-0.7785714285714286 x 100 = -77.86%