-38.63% is the change from 554 to 340
Calculation steps:
[( 340 - 554 ) ÷ 554] x 100 = -38.63%
Formula
Percentage change = [(340 - 554) / 554] x 100
Subtract the new number by the original number
340 - 554 = -214
-214 ÷ 554 = -0.3862815884476534
-0.3862815884476534 x 100 = -38.63%