-86.8% is the change from 341 to 45
Calculation steps:
[( 45 - 341 ) ÷ 341] x 100 = -86.8%
Formula
Percentage change = [(45 - 341) / 341] x 100
Subtract the new number by the original number
45 - 341 = -296
-296 ÷ 341 = -0.8680351906158358
-0.8680351906158358 x 100 = -86.8%