-93.4% is the change from 288 to 19
Calculation steps:
[( 19 - 288 ) ÷ 288] x 100 = -93.4%
Formula
Percentage change = [(19 - 288) / 288] x 100
Subtract the new number by the original number
19 - 288 = -269
-269 ÷ 288 = -0.9340277777777778
-0.9340277777777778 x 100 = -93.4%