-18.11% is the change from 381 to 312
Calculation steps:
[( 312 - 381 ) ÷ 381] x 100 = -18.11%
Formula
Percentage change = [(312 - 381) / 381] x 100
Subtract the new number by the original number
312 - 381 = -69
-69 ÷ 381 = -0.18110236220472442
-0.18110236220472442 x 100 = -18.11%