-48.51% is the change from 538 to 277
Calculation steps:
[( 277 - 538 ) ÷ 538] x 100 = -48.51%
Formula
Percentage change = [(277 - 538) / 538] x 100
Subtract the new number by the original number
277 - 538 = -261
-261 ÷ 538 = -0.4851301115241636
-0.4851301115241636 x 100 = -48.51%