-87.07% is the change from 348 to 45
Calculation steps:
[( 45 - 348 ) ÷ 348] x 100 = -87.07%
Formula
Percentage change = [(45 - 348) / 348] x 100
Subtract the new number by the original number
45 - 348 = -303
-303 ÷ 348 = -0.8706896551724138
-0.8706896551724138 x 100 = -87.07%