-41.97% is the change from 305 to 177
Calculation steps:
[( 177 - 305 ) ÷ 305] x 100 = -41.97%
Formula
Percentage change = [(177 - 305) / 305] x 100
Subtract the new number by the original number
177 - 305 = -128
-128 ÷ 305 = -0.419672131147541
-0.419672131147541 x 100 = -41.97%