-91.39% is the change from 151 to 13
Calculation steps:
[( 13 - 151 ) ÷ 151] x 100 = -91.39%
Formula
Percentage change = [(13 - 151) / 151] x 100
Subtract the new number by the original number
13 - 151 = -138
-138 ÷ 151 = -0.9139072847682119
-0.9139072847682119 x 100 = -91.39%