A percentage needs a baseline.

The entered source scenario baseline ten and current two use the same named unit. Current divided by baseline times one hundred is twenty percent, displayed to two decimals. Bars share thirty pixels per cost unit: three hundred baseline pixels and sixty current pixels. A ratio needs this denominator and a comparable workload. The calculator does not fetch prices or establish equivalent model quality, and this source example is not a current provider price claim. Hold current two fixed and change the entered baseline from ten to four. Bars share thirty pixels per unit, three hundred versus one hundred twenty. The current share changes from twenty to fifty percent because its denominator changed, even though the numerator did not. This is not a measured technological cost curve or proof that output quality remained equivalent. With baseline four and current six, common thirty pixels per cost unit gives one hundred twenty and one hundred eighty pixels. Six divided by four is one hundred fifty percent of baseline. The source accepts a positive baseline and nonnegative current cost, so zero current can produce zero percent while zero baseline is blocked. Named unit and quality text are also required. Exports retain the last saved calculation, not necessarily unsaved edits.