-70.97% is the change from 155 to 45
Calculation steps:
[( 45 - 155 ) ÷ 155] x 100 = -70.97%
Formula
Percentage change = [(45 - 155) / 155] x 100
Subtract the new number by the original number
45 - 155 = -110
-110 ÷ 155 = -0.7096774193548387
-0.7096774193548387 x 100 = -70.97%