-71.66% is the change from 547 to 155
Calculation steps:
[( 155 - 547 ) ÷ 547] x 100 = -71.66%
Formula
Percentage change = [(155 - 547) / 547] x 100
Subtract the new number by the original number
155 - 547 = -392
-392 ÷ 547 = -0.716636197440585
-0.716636197440585 x 100 = -71.66%