-71.69% is the change from 551 to 156
Calculation steps:
[( 156 - 551 ) ÷ 551] x 100 = -71.69%
Formula
Percentage change = [(156 - 551) / 551] x 100
Subtract the new number by the original number
156 - 551 = -395
-395 ÷ 551 = -0.7168784029038112
-0.7168784029038112 x 100 = -71.69%