-86.92% is the change from 344 to 45
Calculation steps:
[( 45 - 344 ) ÷ 344] x 100 = -86.92%
Formula
Percentage change = [(45 - 344) / 344] x 100
Subtract the new number by the original number
45 - 344 = -299
-299 ÷ 344 = -0.8691860465116279
-0.8691860465116279 x 100 = -86.92%