-49.01% is the change from 151 to 77
Calculation steps:
[( 77 - 151 ) ÷ 151] x 100 = -49.01%
Formula
Percentage change = [(77 - 151) / 151] x 100
Subtract the new number by the original number
77 - 151 = -74
-74 ÷ 151 = -0.4900662251655629
-0.4900662251655629 x 100 = -49.01%