-71.34% is the change from 157 to 45
Calculation steps:
[( 45 - 157 ) ÷ 157] x 100 = -71.34%
Formula
Percentage change = [(45 - 157) / 157] x 100
Subtract the new number by the original number
45 - 157 = -112
-112 ÷ 157 = -0.7133757961783439
-0.7133757961783439 x 100 = -71.34%