-26.4% is the change from 178 to 131
Calculation steps:
[( 131 - 178 ) ÷ 178] x 100 = -26.4%
Formula
Percentage change = [(131 - 178) / 178] x 100
Subtract the new number by the original number
131 - 178 = -47
-47 ÷ 178 = -0.2640449438202247
-0.2640449438202247 x 100 = -26.4%