-53.02% is the change from 215 to 101
Calculation steps:
[( 101 - 215 ) ÷ 215] x 100 = -53.02%
Formula
Percentage change = [(101 - 215) / 215] x 100
Subtract the new number by the original number
101 - 215 = -114
-114 ÷ 215 = -0.5302325581395348
-0.5302325581395348 x 100 = -53.02%