-70.97% is the change from 534 to 155
Calculation steps:
[( 155 - 534 ) ÷ 534] x 100 = -70.97%
Formula
Percentage change = [(155 - 534) / 534] x 100
Subtract the new number by the original number
155 - 534 = -379
-379 ÷ 534 = -0.7097378277153558
-0.7097378277153558 x 100 = -70.97%