-54.67% is the change from 503 to 228
Calculation steps:
[( 228 - 503 ) ÷ 503] x 100 = -54.67%
Formula
Percentage change = [(228 - 503) / 503] x 100
Subtract the new number by the original number
228 - 503 = -275
-275 ÷ 503 = -0.5467196819085487
-0.5467196819085487 x 100 = -54.67%