-37.25% is the change from 247 to 155
Calculation steps:
[( 155 - 247 ) ÷ 247] x 100 = -37.25%
Formula
Percentage change = [(155 - 247) / 247] x 100
Subtract the new number by the original number
155 - 247 = -92
-92 ÷ 247 = -0.3724696356275304
-0.3724696356275304 x 100 = -37.25%