-25.49% is the change from 506 to 377
Calculation steps:
[( 377 - 506 ) ÷ 506] x 100 = -25.49%
Formula
Percentage change = [(377 - 506) / 506] x 100
Subtract the new number by the original number
377 - 506 = -129
-129 ÷ 506 = -0.2549407114624506
-0.2549407114624506 x 100 = -25.49%