-98.92% is the change from 278 to 3
Calculation steps:
[( 3 - 278 ) ÷ 278] x 100 = -98.92%
Formula
Percentage change = [(3 - 278) / 278] x 100
Subtract the new number by the original number
3 - 278 = -275
-275 ÷ 278 = -0.9892086330935251
-0.9892086330935251 x 100 = -98.92%