-7.95% is the change from 151 to 139
Calculation steps:
[( 139 - 151 ) ÷ 151] x 100 = -7.95%
Formula
Percentage change = [(139 - 151) / 151] x 100
Subtract the new number by the original number
139 - 151 = -12
-12 ÷ 151 = -0.07947019867549669
-0.07947019867549669 x 100 = -7.95%