-43.53% is the change from 278 to 157
Calculation steps:
[( 157 - 278 ) ÷ 278] x 100 = -43.53%
Formula
Percentage change = [(157 - 278) / 278] x 100
Subtract the new number by the original number
157 - 278 = -121
-121 ÷ 278 = -0.4352517985611511
-0.4352517985611511 x 100 = -43.53%