-91.16% is the change from 147 to 13
Calculation steps:
[( 13 - 147 ) ÷ 147] x 100 = -91.16%
Formula
Percentage change = [(13 - 147) / 147] x 100
Subtract the new number by the original number
13 - 147 = -134
-134 ÷ 147 = -0.9115646258503401
-0.9115646258503401 x 100 = -91.16%