-97.09% is the change from 344 to 10
Calculation steps:
[( 10 - 344 ) ÷ 344] x 100 = -97.09%
Formula
Percentage change = [(10 - 344) / 344] x 100
Subtract the new number by the original number
10 - 344 = -334
-334 ÷ 344 = -0.9709302325581395
-0.9709302325581395 x 100 = -97.09%