-30.43% is the change from 276 to 192
Calculation steps:
[( 192 - 276 ) ÷ 276] x 100 = -30.43%
Formula
Percentage change = [(192 - 276) / 276] x 100
Subtract the new number by the original number
192 - 276 = -84
-84 ÷ 276 = -0.30434782608695654
-0.30434782608695654 x 100 = -30.43%