-52.09% is the change from 215 to 103
Calculation steps:
[( 103 - 215 ) ÷ 215] x 100 = -52.09%
Formula
Percentage change = [(103 - 215) / 215] x 100
Subtract the new number by the original number
103 - 215 = -112
-112 ÷ 215 = -0.5209302325581395
-0.5209302325581395 x 100 = -52.09%