-61.63% is the change from 503 to 193
Calculation steps:
[( 193 - 503 ) ÷ 503] x 100 = -61.63%
Formula
Percentage change = [(193 - 503) / 503] x 100
Subtract the new number by the original number
193 - 503 = -310
-310 ÷ 503 = -0.6163021868787276
-0.6163021868787276 x 100 = -61.63%