-60.64% is the change from 503 to 198
Calculation steps:
[( 198 - 503 ) ÷ 503] x 100 = -60.64%
Formula
Percentage change = [(198 - 503) / 503] x 100
Subtract the new number by the original number
198 - 503 = -305
-305 ÷ 503 = -0.6063618290258449
-0.6063618290258449 x 100 = -60.64%